# Partxt Fastener > Fastener specification database: nominal dimensions for screws, bolts, nuts and washers, drawn from DIN, ISO, ANSI and JIS standards, plus thread data, materials, property classes and standard comparisons. Dimensions are nominal values in millimetres unless stated otherwise. They are compiled from published standards and are presented as factual reference data. Always verify against the current revision of the standard or the supplier drawing before ordering. ## Main sections - [Partxt Fastener — home](https://partxt.com/): Specifications for metric and inch fasteners: dimension tables for DIN, ISO, ANSI and JIS standards, thread data and equivalent comparisons. - [Fastener specifications](https://partxt.com/fasteners/): Every fastener specification page in the database — hex bolts, socket head cap screws, nuts and washers across DIN, ISO, ANSI and JIS standards, with… - [Standards index](https://partxt.com/standards/): All fastener standards in the database, grouped by issuing organisation: DIN and ISO, with their equivalents. - [Categories](https://partxt.com/categories/): Fastener categories: screws, bolts, nuts and washers — all standards and specification pages in each group. - [Threads](https://partxt.com/threads/): Thread specifications for ISO metric, UNC and UNF threads: major and minor diameter, pitch, TPI, thread angle and tap drill size. - [Fastener sizes](https://partxt.com/sizes/): Every metric diameter in the database with its coarse pitch, major diameter and recommended tap drill size. - [Materials](https://partxt.com/materials/): Fastener materials: carbon steel, alloy steel, stainless steel A2 and A4, brass, aluminium, titanium and nylon. - [Property classes and grades](https://partxt.com/grades/): Fastener property classes: tensile strength, yield strength, hardness and the matching nut class for carbon steel and stainless steel fasteners. - [Compare](https://partxt.com/compare/): Compare fastener standards side by side to see whether they really are interchangeable — including the dimensional differences. ## Standards One page per standard, with the full nominal-dimension table. - [Standards index](https://partxt.com/standards/): All fastener standards in the database, grouped by issuing organisation: DIN and ISO, with their equivalents. - [DIN 125 A Flat Washer — Normal Series, 140 HV Dimensions (M3–M24)](https://partxt.com/standards/din-125-a/): DIN 125 A — Flat washer. Nominal dimensions for sizes M3–M24, with links to 13 individual specification pages. - [DIN 127 Spring Lock Washer — Square Section Dimensions (M3–M24)](https://partxt.com/standards/din-127/): DIN 127 — Spring lock washer. Nominal dimensions for sizes M3–M24, with links to 11 individual specification pages. - [DIN 439 Hexagon Thin Nut (Jam Nut) Dimensions (M4–M24)](https://partxt.com/standards/din-439/): DIN 439 — Hexagon thin nut. Nominal dimensions for sizes M4–M24, with links to 12 individual specification pages. - [DIN 7984 Hexagon Socket Head Cap Screw with Low Head Dimensions (M3–M16)](https://partxt.com/standards/din-7984/): DIN 7984 — Low head socket cap screw. Nominal dimensions for sizes M3–M16, with links to 73 individual specification pages. - [DIN 7991 Hexagon Socket Countersunk Head Screw Dimensions (M3–M20)](https://partxt.com/standards/din-7991/): DIN 7991 — Socket countersunk head screw. Nominal dimensions for sizes M3–M20, with links to 95 individual specification pages. - [DIN 84 Slotted Cheese Head Screw Dimensions (M2–M10)](https://partxt.com/standards/din-84/): DIN 84 — Cheese head screw. Nominal dimensions for sizes M2–M10, with links to 75 individual specification pages. - [DIN 85 Slotted Pan Head Screw Dimensions (M2–M10)](https://partxt.com/standards/din-85/): DIN 85 — Pan head screw. Nominal dimensions for sizes M2–M10, with links to 75 individual specification pages. - [DIN 912 Hexagon Socket Head Cap Screw Dimensions (M2–M24)](https://partxt.com/standards/din-912/): DIN 912 — Socket head cap screw. Nominal dimensions for sizes M2–M24, with links to 123 individual specification pages. - [DIN 913 Hexagon Socket Set Screw — Flat Point Dimensions (M3–M16)](https://partxt.com/standards/din-913/): DIN 913 — Socket set screw, flat point. Nominal dimensions for sizes M3–M16, with links to 64 individual specification pages. - [DIN 914 Hexagon Socket Set Screw — Cone Point Dimensions (M3–M16)](https://partxt.com/standards/din-914/): DIN 914 — Socket set screw, cone point. Nominal dimensions for sizes M3–M16, with links to 64 individual specification pages. - [DIN 915 Hexagon Socket Set Screw — Dog Point Dimensions (M3–M16)](https://partxt.com/standards/din-915/): DIN 915 — Socket set screw, dog point. Nominal dimensions for sizes M3–M16, with links to 64 individual specification pages. - [DIN 916 Hexagon Socket Set Screw — Cup Point Dimensions (M3–M16)](https://partxt.com/standards/din-916/): DIN 916 — Socket set screw, cup point. Nominal dimensions for sizes M3–M16, with links to 64 individual specification pages. - [DIN 931 Hexagon Head Bolt — Partial Thread Dimensions (M4–M24)](https://partxt.com/standards/din-931/): DIN 931 — Hexagon head bolt. Nominal dimensions for sizes M4–M24, with links to 115 individual specification pages. - [DIN 933 Hexagon Head Screw / Bolt — Full Thread Dimensions (M4–M24)](https://partxt.com/standards/din-933/): DIN 933 — Hexagon head bolt. Nominal dimensions for sizes M4–M24, with links to 112 individual specification pages. - [DIN 934 Hexagon Full Nut Dimensions (M2–M24)](https://partxt.com/standards/din-934/): DIN 934 — Hexagon full nut. Nominal dimensions for sizes M2–M24, with links to 15 individual specification pages. - [DIN 963 Slotted Countersunk Head Screw Dimensions (M2–M10)](https://partxt.com/standards/din-963/): DIN 963 — Countersunk head screw. Nominal dimensions for sizes M2–M10, with links to 75 individual specification pages. - [DIN 985 Prevailing Torque Hexagon Nut with Nylon Insert Dimensions (M3–M24)](https://partxt.com/standards/din-985/): DIN 985 — Nylon insert lock nut. Nominal dimensions for sizes M3–M24, with links to 12 individual specification pages. - [ISO 10511 Prevailing Torque Hexagon Nut with Non-Metallic Insert Dimensions (M3–M24)](https://partxt.com/standards/iso-10511/): ISO 10511 — Nylon insert lock nut. Nominal dimensions for sizes M3–M24, with links to 12 individual specification pages. - [ISO 10642 Hexagon Socket Countersunk Head Screw Dimensions (M3–M20)](https://partxt.com/standards/iso-10642/): ISO 10642 — Socket countersunk head screw. Nominal dimensions for sizes M3–M20, with links to 95 individual specification pages. - [ISO 1207 Slotted Cheese Head Screw — Product Grade A Dimensions (M2–M10)](https://partxt.com/standards/iso-1207/): ISO 1207 — Cheese head screw. Nominal dimensions for sizes M2–M10, with links to 75 individual specification pages. - [ISO 1580 Slotted Pan Head Screw — Product Grade A Dimensions (M2–M10)](https://partxt.com/standards/iso-1580/): ISO 1580 — Pan head screw. Nominal dimensions for sizes M2–M10, with links to 75 individual specification pages. - [ISO 2009 Slotted Countersunk Head Screw — Product Grade A Dimensions (M2–M10)](https://partxt.com/standards/iso-2009/): ISO 2009 — Countersunk head screw. Nominal dimensions for sizes M2–M10, with links to 75 individual specification pages. - [ISO 4014 Hexagon Head Bolt — Partial Thread, Product Grade A/B Dimensions (M4–M24)](https://partxt.com/standards/iso-4014/): ISO 4014 — Hexagon head bolt. Nominal dimensions for sizes M4–M24, with links to 115 individual specification pages. - [ISO 4017 Hexagon Head Screw — Full Thread, Product Grade A/B Dimensions (M4–M24)](https://partxt.com/standards/iso-4017/): ISO 4017 — Hexagon head bolt. Nominal dimensions for sizes M4–M24, with links to 112 individual specification pages. - [ISO 4029 Hexagon Socket Set Screw — Cup Point Dimensions (M3–M16)](https://partxt.com/standards/iso-4029/): ISO 4029 — Socket set screw. Nominal dimensions for sizes M3–M16, with links to 64 individual specification pages. - [ISO 4032 Hexagon Regular Nut, Style 1 Dimensions (M2–M24)](https://partxt.com/standards/iso-4032/): ISO 4032 — Hexagon nut. Nominal dimensions for sizes M2–M24, with links to 15 individual specification pages. - [ISO 4035 Hexagon Thin Nut, Chamfered Dimensions (M4–M24)](https://partxt.com/standards/iso-4035/): ISO 4035 — Hexagon thin nut. Nominal dimensions for sizes M4–M24, with links to 12 individual specification pages. - [ISO 4161 Hexagon Flange Nut Dimensions (M5–M20)](https://partxt.com/standards/iso-4161/): ISO 4161 — Flange nut. Nominal dimensions for sizes M5–M20, with links to 8 individual specification pages. - [ISO 4762 Hexagon Socket Head Cap Screw Dimensions (M2–M24)](https://partxt.com/standards/iso-4762/): ISO 4762 — Socket head cap screw. Nominal dimensions for sizes M2–M24, with links to 123 individual specification pages. - [ISO 7089 Flat Washer — Normal Series, 200 HV Dimensions (M3–M24)](https://partxt.com/standards/iso-7089/): ISO 7089 — Flat washer. Nominal dimensions for sizes M3–M24, with links to 13 individual specification pages. - [ISO 7380 Hexagon Socket Button Head Screw Dimensions (M3–M16)](https://partxt.com/standards/iso-7380/): ISO 7380 — Button head socket screw. Nominal dimensions for sizes M3–M16, with links to 73 individual specification pages. ## Categories Screws, bolts, nuts and washers, grouped by product type. - [Categories](https://partxt.com/categories/): Fastener categories: screws, bolts, nuts and washers — all standards and specification pages in each group. - [bolts — standards, types and sizes](https://partxt.com/categories/bolts/): 4 bolts standards in the database with full dimension tables and 454 individual specification pages. - [nuts — standards, types and sizes](https://partxt.com/categories/nuts/): 7 nuts standards in the database with full dimension tables and 86 individual specification pages. - [screws — standards, types and sizes](https://partxt.com/categories/screws/): 17 screws standards in the database with full dimension tables and 1352 individual specification pages. - [washers — standards, types and sizes](https://partxt.com/categories/washers/): 3 washers standards in the database with full dimension tables and 37 individual specification pages. ## Threads Metric, UNC and UNF thread data: pitch, major/minor diameter, tap drill. - [Threads](https://partxt.com/threads/): Thread specifications for ISO metric, UNC and UNF threads: major and minor diameter, pitch, TPI, thread angle and tap drill size. - [Partxt Fastener — home](https://partxt.com/threads/metric/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [M1.6 × 0.35 Thread Dimensions](https://partxt.com/threads/metric/m1.6x0.35/): M1.6 x 0.35: pitch 0.35 mm, 72.57 TPI, tap drill 1.25 mm, minor diameter 1.17 mm. METRIC thread specification data. - [M10 × 1 fine Thread Dimensions](https://partxt.com/threads/metric/m10x1.0/): M10 x 1 (fine): pitch 1 mm, 25.4 TPI, tap drill 9 mm, minor diameter 8.77 mm. METRIC thread specification data. - [M10 × 1.25 fine Thread Dimensions](https://partxt.com/threads/metric/m10x1.25/): M10 x 1.25 (fine): pitch 1.25 mm, 20.32 TPI, tap drill 8.75 mm, minor diameter 8.47 mm. METRIC thread specification data. - [M10 × 1.5 Thread Dimensions](https://partxt.com/threads/metric/m10x1.5/): M10 x 1.5: pitch 1.5 mm, 16.93 TPI, tap drill 8.5 mm, minor diameter 8.16 mm. METRIC thread specification data. - [M12 × 1.25 fine Thread Dimensions](https://partxt.com/threads/metric/m12x1.25/): M12 x 1.25 (fine): pitch 1.25 mm, 20.32 TPI, tap drill 10.75 mm, minor diameter 10.47 mm. METRIC thread specification data. - [M12 × 1.5 fine Thread Dimensions](https://partxt.com/threads/metric/m12x1.5/): M12 x 1.5 (fine): pitch 1.5 mm, 16.93 TPI, tap drill 10.5 mm, minor diameter 10.16 mm. METRIC thread specification data. - [M12 × 1.75 Thread Dimensions](https://partxt.com/threads/metric/m12x1.75/): M12 x 1.75: pitch 1.75 mm, 14.51 TPI, tap drill 10.25 mm, minor diameter 9.85 mm. METRIC thread specification data. - [M14 × 1.5 fine Thread Dimensions](https://partxt.com/threads/metric/m14x1.5/): M14 x 1.5 (fine): pitch 1.5 mm, 16.93 TPI, tap drill 12.5 mm, minor diameter 12.16 mm. METRIC thread specification data. - [M14 × 2 Thread Dimensions](https://partxt.com/threads/metric/m14x2.0/): M14 x 2: pitch 2 mm, 12.7 TPI, tap drill 12 mm, minor diameter 11.55 mm. METRIC thread specification data. - [M16 × 1.5 fine Thread Dimensions](https://partxt.com/threads/metric/m16x1.5/): M16 x 1.5 (fine): pitch 1.5 mm, 16.93 TPI, tap drill 14.5 mm, minor diameter 14.16 mm. METRIC thread specification data. - [M16 × 2 Thread Dimensions](https://partxt.com/threads/metric/m16x2.0/): M16 x 2: pitch 2 mm, 12.7 TPI, tap drill 14 mm, minor diameter 13.55 mm. METRIC thread specification data. - [M18 × 1.5 fine Thread Dimensions](https://partxt.com/threads/metric/m18x1.5/): M18 x 1.5 (fine): pitch 1.5 mm, 16.93 TPI, tap drill 16.5 mm, minor diameter 16.16 mm. METRIC thread specification data. - [M18 × 2.5 Thread Dimensions](https://partxt.com/threads/metric/m18x2.5/): M18 x 2.5: pitch 2.5 mm, 10.16 TPI, tap drill 15.5 mm, minor diameter 14.93 mm. METRIC thread specification data. - [M2.5 × 0.45 Thread Dimensions](https://partxt.com/threads/metric/m2.5x0.45/): M2.5 x 0.45: pitch 0.45 mm, 56.44 TPI, tap drill 2.05 mm, minor diameter 1.95 mm. METRIC thread specification data. - [M20 × 1.5 fine Thread Dimensions](https://partxt.com/threads/metric/m20x1.5/): M20 x 1.5 (fine): pitch 1.5 mm, 16.93 TPI, tap drill 18.5 mm, minor diameter 18.16 mm. METRIC thread specification data. - [M20 × 2.5 Thread Dimensions](https://partxt.com/threads/metric/m20x2.5/): M20 x 2.5: pitch 2.5 mm, 10.16 TPI, tap drill 17.5 mm, minor diameter 16.93 mm. METRIC thread specification data. - [M22 × 2.5 Thread Dimensions](https://partxt.com/threads/metric/m22x2.5/): M22 x 2.5: pitch 2.5 mm, 10.16 TPI, tap drill 19.5 mm, minor diameter 18.93 mm. METRIC thread specification data. - [M24 × 2 fine Thread Dimensions](https://partxt.com/threads/metric/m24x2.0/): M24 x 2 (fine): pitch 2 mm, 12.7 TPI, tap drill 22 mm, minor diameter 21.55 mm. METRIC thread specification data. - [M24 × 3 Thread Dimensions](https://partxt.com/threads/metric/m24x3.0/): M24 x 3: pitch 3 mm, 8.47 TPI, tap drill 21 mm, minor diameter 20.32 mm. METRIC thread specification data. - [M27 × 3 Thread Dimensions](https://partxt.com/threads/metric/m27x3.0/): M27 x 3: pitch 3 mm, 8.47 TPI, tap drill 24 mm, minor diameter 23.32 mm. METRIC thread specification data. - [M2 × 0.4 Thread Dimensions](https://partxt.com/threads/metric/m2x0.4/): M2 x 0.4: pitch 0.4 mm, 63.5 TPI, tap drill 1.6 mm, minor diameter 1.51 mm. METRIC thread specification data. - [M3.5 × 0.6 Thread Dimensions](https://partxt.com/threads/metric/m3.5x0.6/): M3.5 x 0.6: pitch 0.6 mm, 42.33 TPI, tap drill 2.9 mm, minor diameter 2.76 mm. METRIC thread specification data. - [M30 × 2 fine Thread Dimensions](https://partxt.com/threads/metric/m30x2.0/): M30 x 2 (fine): pitch 2 mm, 12.7 TPI, tap drill 28 mm, minor diameter 27.55 mm. METRIC thread specification data. - [M30 × 3.5 Thread Dimensions](https://partxt.com/threads/metric/m30x3.5/): M30 x 3.5: pitch 3.5 mm, 7.26 TPI, tap drill 26.5 mm, minor diameter 25.71 mm. METRIC thread specification data. - [M33 × 3.5 Thread Dimensions](https://partxt.com/threads/metric/m33x3.5/): M33 x 3.5: pitch 3.5 mm, 7.26 TPI, tap drill 29.5 mm, minor diameter 28.71 mm. METRIC thread specification data. - [M36 × 4 Thread Dimensions](https://partxt.com/threads/metric/m36x4.0/): M36 x 4: pitch 4 mm, 6.35 TPI, tap drill 32 mm, minor diameter 31.09 mm. METRIC thread specification data. - [M3 × 0.5 Thread Dimensions](https://partxt.com/threads/metric/m3x0.5/): M3 x 0.5: pitch 0.5 mm, 50.8 TPI, tap drill 2.5 mm, minor diameter 2.39 mm. METRIC thread specification data. - [M42 × 4.5 Thread Dimensions](https://partxt.com/threads/metric/m42x4.5/): M42 x 4.5: pitch 4.5 mm, 5.64 TPI, tap drill 37.5 mm, minor diameter 36.48 mm. METRIC thread specification data. - [M48 × 5 Thread Dimensions](https://partxt.com/threads/metric/m48x5.0/): M48 x 5: pitch 5 mm, 5.08 TPI, tap drill 43 mm, minor diameter 41.87 mm. METRIC thread specification data. - [M4 × 0.7 Thread Dimensions](https://partxt.com/threads/metric/m4x0.7/): M4 x 0.7: pitch 0.7 mm, 36.29 TPI, tap drill 3.3 mm, minor diameter 3.14 mm. METRIC thread specification data. - [M56 × 5.5 Thread Dimensions](https://partxt.com/threads/metric/m56x5.5/): M56 x 5.5: pitch 5.5 mm, 4.62 TPI, tap drill 50.5 mm, minor diameter 49.25 mm. METRIC thread specification data. - [M5 × 0.8 Thread Dimensions](https://partxt.com/threads/metric/m5x0.8/): M5 x 0.8: pitch 0.8 mm, 31.75 TPI, tap drill 4.2 mm, minor diameter 4.02 mm. METRIC thread specification data. - [M64 × 6 Thread Dimensions](https://partxt.com/threads/metric/m64x6.0/): M64 x 6: pitch 6 mm, 4.23 TPI, tap drill 58 mm, minor diameter 56.64 mm. METRIC thread specification data. - [M6 × 1 Thread Dimensions](https://partxt.com/threads/metric/m6x1.0/): M6 x 1: pitch 1 mm, 25.4 TPI, tap drill 5 mm, minor diameter 4.77 mm. METRIC thread specification data. - [M7 × 1 Thread Dimensions](https://partxt.com/threads/metric/m7x1.0/): M7 x 1: pitch 1 mm, 25.4 TPI, tap drill 6 mm, minor diameter 5.77 mm. METRIC thread specification data. - [M8 × 1 fine Thread Dimensions](https://partxt.com/threads/metric/m8x1.0/): M8 x 1 (fine): pitch 1 mm, 25.4 TPI, tap drill 7 mm, minor diameter 6.77 mm. METRIC thread specification data. - [M8 × 1.25 Thread Dimensions](https://partxt.com/threads/metric/m8x1.25/): M8 x 1.25: pitch 1.25 mm, 20.32 TPI, tap drill 6.75 mm, minor diameter 6.47 mm. METRIC thread specification data. - [Partxt Fastener — home](https://partxt.com/threads/unc/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [1-1/2-6 UNC Thread Dimensions](https://partxt.com/threads/unc/1-1-2-6/): 1-1/2-6 UNC: pitch 4.23 mm, 6 TPI, tap drill -69.43 mm, minor diameter -93.82 mm. UNC thread specification data. - [1-1/4-7 UNC Thread Dimensions](https://partxt.com/threads/unc/1-1-4-7/): 1-1/4-7 UNC: pitch 3.63 mm, 7 TPI, tap drill -60.42 mm, minor diameter -81.33 mm. UNC thread specification data. - [1-1/8-7 UNC Thread Dimensions](https://partxt.com/threads/unc/1-1-8-7/): 1-1/8-7 UNC: pitch 3.63 mm, 7 TPI, tap drill -63.59 mm, minor diameter -84.5 mm. UNC thread specification data. - [1/2-13 UNC Thread Dimensions](https://partxt.com/threads/unc/1-2-13/): 1/2-13 UNC: pitch 1.95 mm, 13 TPI, tap drill -36.93 mm, minor diameter -48.19 mm. UNC thread specification data. - [1-3/4-5 UNC Thread Dimensions](https://partxt.com/threads/unc/1-3-4-5/): 1-3/4-5 UNC: pitch 5.08 mm, 5 TPI, tap drill -84.58 mm, minor diameter -113.86 mm. UNC thread specification data. - [1-3/8-6 UNC Thread Dimensions](https://partxt.com/threads/unc/1-3-8-6/): 1-3/8-6 UNC: pitch 4.23 mm, 6 TPI, tap drill -72.6 mm, minor diameter -97 mm. UNC thread specification data. - [1/4-20 UNC Thread Dimensions](https://partxt.com/threads/unc/1-4-20/): 1/4-20 UNC: pitch 1.27 mm, 20 TPI, tap drill -25.91 mm, minor diameter -33.23 mm. UNC thread specification data. - [#1-64 UNC Thread Dimensions](https://partxt.com/threads/unc/1-64/): #1-64 UNC: pitch 0.4 mm, 64 TPI, tap drill -8.23 mm, minor diameter -10.51 mm. UNC thread specification data. - [1-8 UNC Thread Dimensions](https://partxt.com/threads/unc/1-8/): 1-8 UNC: pitch 3.17 mm, 8 TPI, tap drill -55.24 mm, minor diameter -73.54 mm. UNC thread specification data. - [#10-24 UNC Thread Dimensions](https://partxt.com/threads/unc/10-24/): #10-24 UNC: pitch 1.06 mm, 24 TPI, tap drill -22.05 mm, minor diameter -28.15 mm. UNC thread specification data. - [#12-24 UNC Thread Dimensions](https://partxt.com/threads/unc/12-24/): #12-24 UNC: pitch 1.06 mm, 24 TPI, tap drill -21.39 mm, minor diameter -27.49 mm. UNC thread specification data. - [2-4-1/2 UNC Thread Dimensions](https://partxt.com/threads/unc/2-4-1-2/): 2-4-1/2 UNC: pitch 5.64 mm, 4.5 TPI, tap drill -92.57 mm, minor diameter -125.09 mm. UNC thread specification data. - [#2-56 UNC Thread Dimensions](https://partxt.com/threads/unc/2-56/): #2-56 UNC: pitch 0.45 mm, 56 TPI, tap drill -9.34 mm, minor diameter -11.95 mm. UNC thread specification data. - [3/4-10 UNC Thread Dimensions](https://partxt.com/threads/unc/3-4-10/): 3/4-10 UNC: pitch 2.54 mm, 10 TPI, tap drill -45.47 mm, minor diameter -60.1 mm. UNC thread specification data. - [#3-48 UNC Thread Dimensions](https://partxt.com/threads/unc/3-48/): #3-48 UNC: pitch 0.53 mm, 48 TPI, tap drill -10.93 mm, minor diameter -13.98 mm. UNC thread specification data. - [3/8-16 UNC Thread Dimensions](https://partxt.com/threads/unc/3-8-16/): 3/8-16 UNC: pitch 1.59 mm, 16 TPI, tap drill -30.8 mm, minor diameter -39.95 mm. UNC thread specification data. - [#4-40 UNC Thread Dimensions](https://partxt.com/threads/unc/4-40/): #4-40 UNC: pitch 0.64 mm, 40 TPI, tap drill -13.28 mm, minor diameter -16.94 mm. UNC thread specification data. - [5/16-18 UNC Thread Dimensions](https://partxt.com/threads/unc/5-16-18/): 5/16-18 UNC: pitch 1.41 mm, 18 TPI, tap drill -27.9 mm, minor diameter -36.04 mm. UNC thread specification data. - [#5-40 UNC Thread Dimensions](https://partxt.com/threads/unc/5-40/): #5-40 UNC: pitch 0.64 mm, 40 TPI, tap drill -12.95 mm, minor diameter -16.61 mm. UNC thread specification data. - [5/8-11 UNC Thread Dimensions](https://partxt.com/threads/unc/5-8-11/): 5/8-11 UNC: pitch 2.31 mm, 11 TPI, tap drill -42.78 mm, minor diameter -56.08 mm. UNC thread specification data. - [#6-32 UNC Thread Dimensions](https://partxt.com/threads/unc/6-32/): #6-32 UNC: pitch 0.79 mm, 32 TPI, tap drill -16.65 mm, minor diameter -21.23 mm. UNC thread specification data. - [7/16-14 UNC Thread Dimensions](https://partxt.com/threads/unc/7-16-14/): 7/16-14 UNC: pitch 1.81 mm, 14 TPI, tap drill -34.97 mm, minor diameter -45.43 mm. UNC thread specification data. - [7/8-9 UNC Thread Dimensions](https://partxt.com/threads/unc/7-8-9/): 7/8-9 UNC: pitch 2.82 mm, 9 TPI, tap drill -49.46 mm, minor diameter -65.72 mm. UNC thread specification data. - [#8-32 UNC Thread Dimensions](https://partxt.com/threads/unc/8-32/): #8-32 UNC: pitch 0.79 mm, 32 TPI, tap drill -15.99 mm, minor diameter -20.57 mm. UNC thread specification data. - [9/16-12 UNC Thread Dimensions](https://partxt.com/threads/unc/9-16-12/): 9/16-12 UNC: pitch 2.12 mm, 12 TPI, tap drill -39.48 mm, minor diameter -51.67 mm. UNC thread specification data. - [Partxt Fastener — home](https://partxt.com/threads/unf/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [#0-80 UNF Thread Dimensions](https://partxt.com/threads/unf/0-80/): #0-80 UNF: pitch 0.32 mm, 80 TPI, tap drill -6.54 mm, minor diameter -8.37 mm. UNF thread specification data. - [1-1/4-12 UNF Thread Dimensions](https://partxt.com/threads/unf/1-1-4-12/): 1-1/4-12 UNF: pitch 2.12 mm, 12 TPI, tap drill -22.01 mm, minor diameter -34.21 mm. UNF thread specification data. - [1-1/8-12 UNF Thread Dimensions](https://partxt.com/threads/unf/1-1-8-12/): 1-1/8-12 UNF: pitch 2.12 mm, 12 TPI, tap drill -25.19 mm, minor diameter -37.39 mm. UNF thread specification data. - [1-12 UNF Thread Dimensions](https://partxt.com/threads/unf/1-12/): 1-12 UNF: pitch 2.12 mm, 12 TPI, tap drill -28.36 mm, minor diameter -40.56 mm. UNF thread specification data. - [1/2-20 UNF Thread Dimensions](https://partxt.com/threads/unf/1-2-20/): 1/2-20 UNF: pitch 1.27 mm, 20 TPI, tap drill -19.56 mm, minor diameter -26.88 mm. UNF thread specification data. - [1/4-28 UNF Thread Dimensions](https://partxt.com/threads/unf/1-4-28/): 1/4-28 UNF: pitch 0.91 mm, 28 TPI, tap drill -16.69 mm, minor diameter -21.92 mm. UNF thread specification data. - [#10-32 UNF Thread Dimensions](https://partxt.com/threads/unf/10-32/): #10-32 UNF: pitch 0.79 mm, 32 TPI, tap drill -15.34 mm, minor diameter -19.91 mm. UNF thread specification data. - [#12-28 UNF Thread Dimensions](https://partxt.com/threads/unf/12-28/): #12-28 UNF: pitch 0.91 mm, 28 TPI, tap drill -17.55 mm, minor diameter -22.78 mm. UNF thread specification data. - [#2-64 UNF Thread Dimensions](https://partxt.com/threads/unf/2-64/): #2-64 UNF: pitch 0.4 mm, 64 TPI, tap drill -7.9 mm, minor diameter -10.18 mm. UNF thread specification data. - [3/4-16 UNF Thread Dimensions](https://partxt.com/threads/unf/3-4-16/): 3/4-16 UNF: pitch 1.59 mm, 16 TPI, tap drill -21.27 mm, minor diameter -30.42 mm. UNF thread specification data. - [3/8-24 UNF Thread Dimensions](https://partxt.com/threads/unf/3-8-24/): 3/8-24 UNF: pitch 1.06 mm, 24 TPI, tap drill -17.36 mm, minor diameter -23.46 mm. UNF thread specification data. - [#4-48 UNF Thread Dimensions](https://partxt.com/threads/unf/4-48/): #4-48 UNF: pitch 0.53 mm, 48 TPI, tap drill -10.6 mm, minor diameter -13.65 mm. UNF thread specification data. - [5/16-24 UNF Thread Dimensions](https://partxt.com/threads/unf/5-16-24/): 5/16-24 UNF: pitch 1.06 mm, 24 TPI, tap drill -18.94 mm, minor diameter -25.04 mm. UNF thread specification data. - [#5-44 UNF Thread Dimensions](https://partxt.com/threads/unf/5-44/): #5-44 UNF: pitch 0.58 mm, 44 TPI, tap drill -11.49 mm, minor diameter -14.81 mm. UNF thread specification data. - [5/8-18 UNF Thread Dimensions](https://partxt.com/threads/unf/5-8-18/): 5/8-18 UNF: pitch 1.41 mm, 18 TPI, tap drill -19.97 mm, minor diameter -28.1 mm. UNF thread specification data. - [#6-40 UNF Thread Dimensions](https://partxt.com/threads/unf/6-40/): #6-40 UNF: pitch 0.64 mm, 40 TPI, tap drill -12.62 mm, minor diameter -16.28 mm. UNF thread specification data. - [7/16-20 UNF Thread Dimensions](https://partxt.com/threads/unf/7-16-20/): 7/16-20 UNF: pitch 1.27 mm, 20 TPI, tap drill -21.15 mm, minor diameter -28.46 mm. UNF thread specification data. - [7/8-14 UNF Thread Dimensions](https://partxt.com/threads/unf/7-8-14/): 7/8-14 UNF: pitch 1.81 mm, 14 TPI, tap drill -23.86 mm, minor diameter -34.31 mm. UNF thread specification data. - [#8-36 UNF Thread Dimensions](https://partxt.com/threads/unf/8-36/): #8-36 UNF: pitch 0.71 mm, 36 TPI, tap drill -13.76 mm, minor diameter -17.82 mm. UNF thread specification data. - [9/16-18 UNF Thread Dimensions](https://partxt.com/threads/unf/9-16-18/): 9/16-18 UNF: pitch 1.41 mm, 18 TPI, tap drill -21.55 mm, minor diameter -29.69 mm. UNF thread specification data. ## Sizes Every diameter, listing all standards that cover it. - [Fastener sizes](https://partxt.com/sizes/): Every metric diameter in the database with its coarse pitch, major diameter and recommended tap drill size. - [M10 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m10/): Every M10 fastener in the database: the standards available in M10, the M10 thread description and links to each individual M10 specification page. - [M12 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m12/): Every M12 fastener in the database: the standards available in M12, the M12 thread description and links to each individual M12 specification page. - [M14 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m14/): Every M14 fastener in the database: the standards available in M14, the M14 thread description and links to each individual M14 specification page. - [M16 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m16/): Every M16 fastener in the database: the standards available in M16, the M16 thread description and links to each individual M16 specification page. - [M18 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m18/): Every M18 fastener in the database: the standards available in M18, the M18 thread description and links to each individual M18 specification page. - [M2.5 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m2-5/): Every M2.5 fastener in the database: the standards available in M2.5, the M2.5 thread description and links to each individual M2.5 specification pag… - [M2 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m2/): Every M2 fastener in the database: the standards available in M2, the M2 thread description and links to each individual M2 specification page. - [M20 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m20/): Every M20 fastener in the database: the standards available in M20, the M20 thread description and links to each individual M20 specification page. - [M22 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m22/): Every M22 fastener in the database: the standards available in M22, the M22 thread description and links to each individual M22 specification page. - [M24 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m24/): Every M24 fastener in the database: the standards available in M24, the M24 thread description and links to each individual M24 specification page. - [M3.5 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m3-5/): Every M3.5 fastener in the database: the standards available in M3.5, the M3.5 thread description and links to each individual M3.5 specification pag… - [M3 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m3/): Every M3 fastener in the database: the standards available in M3, the M3 thread description and links to each individual M3 specification page. - [M4 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m4/): Every M4 fastener in the database: the standards available in M4, the M4 thread description and links to each individual M4 specification page. - [M5 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m5/): Every M5 fastener in the database: the standards available in M5, the M5 thread description and links to each individual M5 specification page. - [M6 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m6/): Every M6 fastener in the database: the standards available in M6, the M6 thread description and links to each individual M6 specification page. - [M8 Fastener Sizes, Types and Dimensions](https://partxt.com/sizes/m8/): Every M8 fastener in the database: the standards available in M8, the M8 thread description and links to each individual M8 specification page. ## Materials - [Materials](https://partxt.com/materials/): Fastener materials: carbon steel, alloy steel, stainless steel A2 and A4, brass, aluminium, titanium and nylon. - [Partxt Fastener — home](https://partxt.com/materials/alloy-steel/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [Partxt Fastener — home](https://partxt.com/materials/aluminium/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [Partxt Fastener — home](https://partxt.com/materials/brass/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [Partxt Fastener — home](https://partxt.com/materials/carbon-steel/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [Partxt Fastener — home](https://partxt.com/materials/nylon/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [Partxt Fastener — home](https://partxt.com/materials/stainless-steel-a2/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [Partxt Fastener — home](https://partxt.com/materials/stainless-steel-a4/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. - [Partxt Fastener — home](https://partxt.com/materials/titanium/): Metric and inch fastener specifications: screws, bolts, nuts, washers, threads and standards. ## Property classes - [Property classes and grades](https://partxt.com/grades/): Fastener property classes: tensile strength, yield strength, hardness and the matching nut class for carbon steel and stainless steel fasteners. - [Property Class 10.9 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/10.9/): Property Class 10.9 per ISO 898-1: tensile strength 1040 MPa, yield strength 940 MPa, hardness HRC 32–39. Matching nut property class 10. - [Property Class 12.9 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/12.9/): Property Class 12.9 per ISO 898-1: tensile strength 1220 MPa, yield strength 1100 MPa, hardness HRC 39–44. Matching nut property class 12. - [Property Class 4.8 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/4.8/): Property Class 4.8 per ISO 898-1: tensile strength 420 MPa, yield strength 340 MPa, hardness HRB 67–95. Matching nut property class 4. - [Property Class 5.8 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/5.8/): Property Class 5.8 per ISO 898-1: tensile strength 520 MPa, yield strength 420 MPa, hardness HRB 82–95. Matching nut property class 5. - [Property Class 8.8 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/8.8/): Property Class 8.8 per ISO 898-1: tensile strength 800 MPa, yield strength 640 MPa, hardness HRC 22–32. Matching nut property class 8. - [A2-70 Stainless — Tensile Strength, Yield & Hardness](https://partxt.com/grades/a2-70/): A2-70 Stainless per ISO 3506: tensile strength 700 MPa, yield strength 450 MPa, hardness —. Matching nut property class A2-70. - [A2-80 Stainless — Tensile Strength, Yield & Hardness](https://partxt.com/grades/a2-80/): A2-80 Stainless per ISO 3506: tensile strength 800 MPa, yield strength 600 MPa, hardness —. Matching nut property class A2-80. - [A4-70 Stainless (316) — Tensile Strength, Yield & Hardness](https://partxt.com/grades/a4-70/): A4-70 Stainless (316) per ISO 3506: tensile strength 700 MPa, yield strength 450 MPa, hardness —. Matching nut property class A4-70. - [A4-80 Stainless (316) — Tensile Strength, Yield & Hardness](https://partxt.com/grades/a4-80/): A4-80 Stainless (316) per ISO 3506: tensile strength 800 MPa, yield strength 600 MPa, hardness —. Matching nut property class A4-80. - [SAE J429 Grade 2 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/sae-grade-2/): SAE J429 Grade 2 per SAE J429: tensile strength 414 MPa, yield strength 393 MPa, hardness HRB 70–100. Matching nut property class —. - [SAE J429 Grade 5 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/sae-grade-5/): SAE J429 Grade 5 per SAE J429: tensile strength 828 MPa, yield strength 634 MPa, hardness HRC 25–34. Matching nut property class —. - [SAE J429 Grade 8 — Tensile Strength, Yield & Hardness](https://partxt.com/grades/sae-grade-8/): SAE J429 Grade 8 per SAE J429: tensile strength 1034 MPa, yield strength 896 MPa, hardness HRC 33–40. Matching nut property class —. ## Standard comparisons Side-by-side comparison of equivalent standards (e.g. DIN 912 vs ISO 4762). - [Compare](https://partxt.com/compare/): Compare fastener standards side by side to see whether they really are interchangeable — including the dimensional differences. - [DIN 439 vs ISO 4035](https://partxt.com/compare/din-439-vs-iso-4035/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 7991 vs ISO 10642](https://partxt.com/compare/din-7991-vs-iso-10642/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 84 vs ISO 1207](https://partxt.com/compare/din-84-vs-iso-1207/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 85 vs ISO 1580](https://partxt.com/compare/din-85-vs-iso-1580/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 912 vs ISO 4762](https://partxt.com/compare/din-912-vs-iso-4762/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 916 vs ISO 4029](https://partxt.com/compare/din-916-vs-iso-4029/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 931 vs ISO 4014](https://partxt.com/compare/din-931-vs-iso-4014/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 933 vs ISO 4017](https://partxt.com/compare/din-933-vs-iso-4017/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 934 vs ISO 4032](https://partxt.com/compare/din-934-vs-iso-4032/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 963 vs ISO 2009](https://partxt.com/compare/din-963-vs-iso-2009/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [DIN 985 vs ISO 10511](https://partxt.com/compare/din-985-vs-iso-10511/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… - [ISO 7089 vs DIN 125 A](https://partxt.com/compare/iso-7089-vs-din-125-a/): Within this database the two standards list identical nominal dimensions for every overlapping size, so they are interchangeable for most purchasing… ## Full index This file lists the hubs. The 1,930 individual specification pages (one per standard and size) are listed in full at [llms-full.txt](https://partxt.com/llms-full.txt). ## Sitemap - [XML sitemap](https://partxt.com/sitemap.xml)