24 standards145 specification pages

M3 Fasteners

All M3 screws, bolts, nuts and washers in the database. M3 has a nominal major diameter of 3 mm with a standard coarse pitch of 0.5 mm, across 24 standards.

Nominal Ø3 mm
Coarse pitch0.5 mm
Pitch Ø2.68 mm
Tap drill2.5 mm

M3 thread dimensions

Full thread page
Designation
M3 × 0.5
Major diameter
3 mm
Pitch
0.5 mm
Pitch diameter
2.68 mm
Minor diameter — external
2.39 mm
Minor diameter — internal
2.46 mm
Tap drill size
Ø 2.5 mm

M3 Screws

138 pages
ISO 2009Slotted Countersunk Head Screw — Product Grade A

M3 Nuts

4 pages
DIN 934Hexagon Full Nut
ISO 4032Hexagon Regular Nut, Style 1
DIN 985Prevailing Torque Hexagon Nut with Nylon Insert
ISO 10511Prevailing Torque Hexagon Nut with Non-Metallic Insert

M3 Washers

3 pages
ISO 7089Flat Washer — Normal Series, 200 HV
DIN 125 AFlat Washer — Normal Series, 140 HV
DIN 127Spring Lock Washer — Square Section

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