Inch series3 standards18 specification pages

3/8-16 Fasteners

All 3/8-16 screws, bolts, nuts and washers in the database. 3/8-16 has a nominal major diameter of 0.375 in, threaded 16 tpi to the UNC series, across 3 standards.

Nominal Ø0.375 in
Threads per inch16 tpi
Pitch Ø0.3343 in
Tap drill0.3126 in

3/8-16 thread dimensions

Full thread page
Designation
3/8-16 UNC
Major diameter
0.375 in
Threads per inch
16 tpi
Pitch diameter
0.3343 in
Minor diameter — external
0.2984 in
Minor diameter — internal
0.3075 in
Tap drill size
Ø 0.3126 in

3/8-16 Bolts

9 pages
ASME B18.2.1Hex Head Cap Screw — Inch Series
3/8-16 × 0.753/8-16 × 13/8-16 × 1.253/8-16 × 1.53/8-16 × 23/8-16 × 2.53/8-16 × 33/8-16 × 43/8-16 × 5

3/8-16 Screws

8 pages
ASME B18.3Socket Head Cap Screw — Inch Series
3/8-16 × 0.753/8-16 × 13/8-16 × 1.253/8-16 × 1.53/8-16 × 23/8-16 × 2.53/8-16 × 33/8-16 × 4

3/8-16 Nuts

1 pages
ASME B18.2.2Hex Nut — Inch Series
3/8-16

Browse other sizes

1-81/21/2-131/41/4-2010-243/43/4-103/83/8-164-405/165/16-185/85/8-116-327/8-98-32M10M12M14M16M18M2M2.5M20M22M24M3M3.5M4M5M6M8