Shop Note
Screw Holes
Tap and Body Drill Sizes
Based on approximately 75% full thread
| Tap - Thread | Drill | Body Size
|
| #0 - 80 | 3/64
|
|
| #1 - 64 | No. 53
|
| #1 - 72 | No. 53
|
| #2 - 56 | No. 51
| No. 44
|
| #2 - 64 | N0. 50
|
| #3 - 48 | 5/64
|
|
| #3 - 56 | No. 46
|
| #4 - 40 | No. 43
| No. 33
|
| #4 - 48 | No. 42
|
| #5 - 40 | No. 39
|
|
| #5 - 44 | No. 37
|
| #6 - 32 | No. 36
| No. 28
|
| #6 - 40 | No. 33
|
| #8 - 32 | No. 29
| No. 19
|
| #8 - 36 | No. 29
|
| #10 - 24 | No. 25
| No. 11
|
| #10 - 32 | No. 21
|
| #12 - 24 | No. 17
| No. 7/32
|
| #12 - 28 | No. 15
|
| 1/4 - 20 | No. 8
|
|
| 1/4 - 28 | No. 3
|
| 5/16 - 18 | F
|
| 5/16 - 24 | I
|
| 3/8 - 16 | 5/16
|
| 3/8 - 24 | Q
|
| 7/16 - 14 | U
|
| 7/16 - 20 | W
|
| 1/2 - 13 | 27/64
|
| 1/2 - 20 | 29/64
|
| 9/16 - 12 | 31/64
|
| 9/16 – 18 | 33/64
|
| 5/8 – 11 | 17/32
|
| 5/8 – 18 | 37/64
|
| 3/4 – 10 | 21/32
|
| 3/4 – 16 | 11/16
|
| 7/8 – 9 | 49/64
|
| 7/8 0 14 | 13/16
|
| 1 – 8 | 7/8
|
| 1 – 14 | 15/16
|
| 1 1/8 – 7 | 63/64
|
| 1 1/8 –12 | 1 3/16
|
| 1 1/4 – 7 | 1 7/64
|
| 1 1/4 – 12 | 1 11/64
|
| 1 1/2 6 | 1 11/32
|
| 1 1/2 | 1 27/64
|
| 1 3/4 - 5 | 1 35/64
|
| 1 3/4 - 12 | 1 43/64
|
| 2 – 4 1/2 | 1 25/32
|
| 2 – 12 | 1 59/64
|
| 2 1/4 – 4 1/2 | 2 1/32
|
| 2 1/2 – 4 | 2 1/4
|
| 2 3/4 – 4 | 2 1/2
|
| 3 – 4 | 2 3/4
|
Back?