| Tap Size | Ouside Diameter | Tap drill Size | |||||
|---|---|---|---|---|---|---|---|
| in | Desig. | mm | Type | in | mm | in | mm |
| #0-80 | NF | 0.060in | 1.52mm | 3/64" | |||
|
|
|
M1.6x0.35 | Coarse | 0.063in | 1.60mm |
|
1.25mm |
|
|
|
M1.8x0.35 | Coarse | 0.071in | 1.80mm | #54 | 1.45mm |
| #1-64 | NC |
|
|
0.073in | 1.85mm | #53 | |
| #1-72 | NF |
|
|
0.073in | 1.85mm | #53 | |
|
|
|
M2x0.4 | Coarse | 0.079in | 2.00mm | #52 | 1.60mm |
| #2-56 | NC |
|
|
0.086in | 2.18mm | #50 | |
| #2-64 | NF |
|
|
0.086in | 2.18mm | #50 | |
|
|
|
M2.2x0.45 | Coarse | 0.087in | 2.20mm | #50 | 1.75mm |
|
|
|
M2.5x0.45 | Coarse | 0.098in | 2.50mm | #46 | 2.05mm |
| #3-56 | NF |
|
|
0.099in | 2.51mm | #45 | |
| #3-48 | NC |
|
|
0.099in | 2.51mm | #47 | |
| #4-48 | NF |
|
|
0.112in | 2.84mm | #42 | |
| #4-40 | NC |
|
|
0.112in | 2.84mm | #43 | |
| #4-36 | NS |
|
|
0.112in | 2.84mm | #44 | |
|
|
|
M3x.035 | Fine | 0.118in | 3.00mm | #37 | 2.65mm |
|
|
|
M3x0.5 | Coarse | 0.118in | 3.00mm |
|
3.00mm |
| #5-44 | NF |
|
|
0.125in | 3.18mm | #37 | |
| #5-40 | NC |
|
|
0.125in | 3.18mm | #38 | |
|
|
|
M3.5x0.35 | Fine | 0.138in | 3.50mm | 1/8" | 3.15mm |
|
|
|
M3.5x0.6 | Coarse | 0.138in | 3.50mm |
|
2.90mm |
| #6-40 | NF |
|
|
0.138in | 3.51mm | #33 | |
| #6-32 | NC |
|
|
0.138in | 3.51mm | #36 | |
|
|
|
M4x0.7 | Coarse | 0.157in | 4.00mm |
|
3.30mm |
|
|
|
M4x0.5 | Fine | 0.157in | 4.00mm |
|
3.50mm |
| #8-32 | NC |
|
|
0.164in | 4.17mm | #29 | |
| #8-36 | NF |
|
|
0.164in | 4.17mm | #29 | |
|
|
|
M4.5x0.75 | Coarse | 0.177in | 4.50mm | #26 | 3.75mm |
|
|
|
M4.5x0.50 | Fine | 0.177in | 4.50mm |
|
4.00mm |
| #10-32 | NF |
|
|
0.190in | 4.83mm | #21 | |
| #10-24 | NC |
|
|
0.190in | 4.83mm | #25 | |
|
|
|
M5x0.80 | Coarse | 0.197in | 5.00mm | #19 | 4.20mm |
|
|
|
M5x0.50 | Fine | 0.197in | 5.00mm |
|
4.50mm |
| #12-28 | NF |
|
|
0.216in | 5.49mm | #14 | |
| #12-24 | NC |
|
|
0.216in | 5.49mm | #16 | |
|
|
|
M6x0.75 | Fine | 0.236in | 6.00mm | #5 | 5.25mm |
|
|
|
M6x1.0 | Coarse | 0.236in | 6.00mm |
|
5.00mm |
| 1/4-28 | NF |
|
|
0.250in | 6.35mm | #3 | |
| 1/4-20 | NC |
|
|
0.250in | 6.35mm | #7 | |
|
|
|
M7x0.75 | Fine | 0.276in | 7.00mm | H | 6.75mm |
|
|
|
M7x1.0 | Coarse | 0.276in | 7.00mm |
|
6.00mm |
| 5/16-18 | NC |
|
|
0.313in | 7.94mm | F | |
| 5/16-24 | NF |
|
|
0.313in | 7.94mm | I | |
|
|
|
M8x1.25 | Coarse | 0.315in | 8.00mm | H | 6.75mm |
|
|
|
M8x1.0 | Fine | 0.315in | 8.00mm |
|
7.00mm |
| 3/8-16 | NC |
|
|
0.375in | 9.53mm | 5/16" | |
| 3/8-24 | NF |
|
|
0.375in | 9.53mm | Q | |
|
|
|
M10x1.25 | Fine | 0.394in | 10.00mm | 11/32" | 8.75mm |
|
|
|
M10x1.5 | Coarse | 0.394in | 10.00mm |
|
8.50mm |
|
|
|
M10x1.0 |
|
0.394in | 10.00mm |
|
9.00mm |
| 7/16-14 | NC |
|
|
0.438in | 11.11mm | U | |
| 7/16-20 | NF |
|
|
0.438in | 11.11mm | 25/64" | |
|
|
|
M12x1.25 | Fine | 0.472in | 12.00mm | 27/64" | 10.75mm |
|
|
|
M12x1.75 | Coarse | 0.472in | 12.00mm | Y | 10.25mm |
|
|
|
M12x1.5 |
|
0.472in | 12.00mm | Z | 10.50mm |
|
|
|
M12x1.0 |
|
0.472in | 12.00mm |
|
11.00mm |
| 1/2-13 | NC |
|
|
0.500in | 12.70mm | 27/64" | |
| 1/2-20 | NF |
|
|
0.500in | 12.70mm | 29/64" | |
|
|
|
M14x1.5 | Fine | 0.551in | 14.00mm |
|
12.50mm |
|
|
|
M14x2.0 | Coarse | 0.551in | 14.00mm |
|
12.00mm |
| 9/16-12 | NC |
|
|
0.563in | 14.29mm | 31/64" | |
| 9/16-18 | NF |
|
|
0.563in | 14.29mm | 33/64" | |
| 5/8-11 | NC |
|
|
0.625in | 15.88mm | 17/32" | |
| 5/8-18 | NF |
|
|
0.625in | 15.88mm | 37/64" | |
|
|
|
M16x1.5 | Fine | 0.630in | 16.00mm |
|
14.50mm |
|
|
|
M16x2.0 | Coarse | 0.630in | 16.00mm |
|
14.00mm |
| 11/16-11 | NS |
|
|
0.688in | 17.46mm | 19/32" | |
| 11/16-16 | NS |
|
|
0.688in | 17.46mm | 5/8" | |
|
|
|
M18x2.5 | Coarse | 0.709in | 18.00mm | 39/64" | 15.50mm |
|
|
|
M18x1.5 | Fine | 0.709in | 18.00mm |
|
16.50mm |
| 3/4-10 | NC |
|
|
0.750in | 19.05mm | 21/32" | |
| 3/4-16 | NF |
|
|
0.750in | 19.05mm | 11/16" | |
|
|
|
M20x2.5 | Coarse | 0.787in | 20.00mm | 11/16" | 17.50mm |
|
|
|
M20x1.5 | Fine | 0.787in | 20.00mm |
|
18.50mm |
|
|
|
M22x2.5 | Coarse | 0.866in | 22.00mm | 49/64" | 19.50mm |
|
|
|
M22x1.5 | Fine | 0.866in | 22.00mm |
|
20.50mm |
| 7/8-14 | NF |
|
|
0.875in | 22.23mm | 13/16" | |
| 7/8-9 | NC |
|
|
0.875in | 22.23mm | 49/64" | |
|
|
|
M24x3.0 | Coarse | 0.945in | 24.00mm | 53/64" | 21.00mm |
|
|
|
M24x2.0 | Fine | 0.945in | 24.00mm |
|
22.00mm |
| 1-12 | NF |
|
|
1.000in | 25.40mm | 59/64" | |
| 1-14 | NS |
|
|
1.000in | 25.40mm | 15/16" | |
| 1-8 | NC |
|
|
1.000in | 25.40mm | 7/8" | |
| 1 1/8-12 | NF |
|
|
1.125in | 28.58mm | 1 3/64" | |
| 1 1/8-7 | NC |
|
|
1.125in | 28.58mm | 63/64" | |
|
|
|
M30x3.5 | Coarse | 1.181in | 30.00mm | 1 3/64" | 26.50mm |
|
|
|
M30x2.0 | Fine | 1.181in | 30.00mm |
|
28.00mm |
| 1 1/4-12 | NF |
|
|
1.250in | 31.75mm | 1 11/64" | |
| 1 1/4-7 | NC |
|
|
1.250in | 31.75mm | 1 7/64" | |
|
|
|
M33x3.5 | Coarse | 1.299in | 33.00mm |
|
29.50mm |
|
|
|
M33x2.0 | Fine | 1.299in | 33.00mm |
|
31.00mm |
| 1 3/8-12 | NF |
|
|
1.375in | 34.93mm | 1 19/64" | |
| 1 3/8-6 | NC |
|
|
1.375in | 34.93mm | 1 7/32" | |
|
|
|
M36x4.0 | Coarse | 1.417in | 36.00mm |
|
32.00mm |
|
|
|
M36x3.0 |
|
1.417in | 36.00mm |
|
33.00mm |
| 1 1/2-12 | NF |
|
|
1.500in | 38.10mm | 1 27/64" | |
| 1 1/2-6 | NC |
|
|
1.500in | 38.10mm | 1 11/32" | |
|
|
|
M39x4.0 | Coarse | 1.535in | 39.00mm | 1 3/8" | 35.00mm |
|
|
|
M39x3.0 |
|
1.535in | 39.00mm |
|
36.00mm |
| 1 5/8-5 1/2 | NS |
|
|
1.625in | 41.28mm | 1 29/64" | |
| 1 3/4-5 | NC |
|
|
1.750in | 44.45mm | 1 9/16" | |
| 2-4 1/2 | NC |
|
|
2.000in | 50.80mm | 1 25/32" | |
|
|
|||||||
Last Updated: 20 February 2015