Tables > Drills and Hole Saws > Dimensions and Sizes > Threads, Tap drills
Thread dimensions and tap drill sizes for coarse and finely threaded series
|
| Coarse Thread Series |
Fine Thread Series |
| Nominal Size |
Threads Per In. |
Tap Drill |
Clearance Drill |
Nominal Size |
Threads Per In. |
Tap Drill |
Clearance Drill |
| 5/64" | 48 | 47 | 36 | 0 | 80 | 3/64" | 51 | | 1/8 | 40 | 38 | 29 | 1 | 72 | 53 | 47 | | 6 | 32 | 36 | 25 | 2 | 64 | 50 | 42 | | 8 | 32 | 29 | 16 | 3 | 56 | 45 | 36 | | 10 | 24 | 25 | 13/64" | 4 | 48 | 42 | 31 | | 12 | 24 | 16 | 7/32" | 1/8" | 44 | 37 | 29 | | 1/4" | 20 | 7 | 17/64" | 6 | 40 | 33 | 25 | | 5/16" | 18 | F | 21/64" | 8 | 36 | 29 | 16 | | 3/8" | 16 | 5/16" | 25/64" | 10 | 32 | 21 | 13/64" | | 7/16" | 14 | U | 29/64" | 12 | 28 | 14 | 7/32' | | 1/2" | 13 | 27/64" | 33/64" | 1/4" | 28 | 3 | 17/64" | | 9/16" | 12 | 31/64" | 37/64" | 5/16" | 24 | 1 | 21/64" | | 5/8" | 11 | 17/32" | 41/64" | 3/8" | 24 | Q | 25/64" | | 3/4" | 10 | 21/32" | 49/64" | 7/16" | 20 | 25/64" | 29/64" | | 7/8" | 9 | 49/64" | 57/64" | 1/2" | 20 | 29/64" | 33/64" | | 1" | 8 | 7/8" | 1-1/64" | 9/16" | 18 | 33/64" | 37/64" | | 1-1/4" | 7 | 1-11/64" | 1-17/64" | 5/8" | 18 | 37/64" | 41/64" | | 1-3/8" | 6 | 1-19/64" | 1-25/64" | 3/4" | 16 | 11/16" | 49/64" | | 1-1/2" | 6 | 1-27/64" | 1-33/64" | 7/8" | 14 | 13/16" | 57/64" | | 2" | 4-1/2" | 1-25/32" | 2-1/32" | 1 | 14 | 15/16" | 1-1/64" |
|
|
|
Cables
