| M |
| UNC |
| UNF | ||||||||
| 尺寸Size | 标准牙Standard d | 底孔Hole | 细牙Fine | 特细牙Extra Fine |
| 尺寸Size | 标准牙数Threads/in | 底孔Hole |
| 尺寸Size | 标准牙数Threads/in | 底孔Hole |
| M1 | 0.25 | 0.75 |
|
|
| Nr.1 | 64 | 1.55 |
| Nr.0 | 80 | 1.30 |
| M2 | 0.40 | 1.60 |
|
|
| Nr.2 | 56 | 1.83 |
| Nr.1 | 72 | 1.60 |
| M2.5 | 0.45 | 2.05 |
|
|
| Nr.3 | 48 | 2.10 |
| Nr.2 | 64 | 1.90 |
| M3 | 0.50 | 2.50 |
|
|
| Nr.4 | 40 | 2.35 |
| Nr.3 | 56 | 2.10 |
| M4 | 0.70 | 3.30 |
|
|
| Nr.5 | 40 | 2.65 |
| Nr.4 | 48 | 2.40 |
| M5 | 0.80 | 4.20 |
|
|
| Nr.6 | 32 | 2.85 |
| Nr.5 | 44 | 2.70 |
| M6 | 1.00 | 5.00 |
|
|
| Nr.8 | 32 | 3.50 |
| Nr.6 | 40 | 3.00 |
| M7 | 1.00 | 6.00 |
|
|
| Nr.10 | 24 | 3.90 |
| Nr.8 | 36 | 3.50 |
| M8 | 1.25 | 6.80 | 1.00 |
|
| Nr.12 | 24 | 4.50 |
| Nr.10 | 32 | 4.10 |
| M9 | 1.25 | 7.80 | 1.00 |
|
| 1/4" | 20 | 5.20 |
| Nr.12 | 28 | 4.70 |
| M10 | 1.50 | 8.50 | 1.25 | 1.00 |
| 5/16" | 18 | 6.60 |
| 1/4" | 28 | 5.50 |
| M12 | 1.75 | 10.20 | 1.50 | 1.25 |
| 3/8" | 16 | 8.00 |
| 5/16" | 24 | 6.90 |
| M14 | 2.00 | 12.00 | 1.50 |
|
| 7/16" | 14 | 9.40 |
| 3/8" | 24 | 8.50 |
| M16 | 2.00 | 14.00 | 1.50 |
|
| 1/2" | 13 | 10.80 |
| 7/16" | 20 | 9.90 |
| M18 | 2.50 | 15.50 | 1.50 |
|
| 9/16" | 12 | 12.20 |
| 1/2" | 20 | 11.50 |
| M20 | 2.50 | 17.50 | 1.50 |
|
| 5/8" | 11 | 13.50 |
| 9/16" | 18 | 12.90 |
| M22 | 2.50 | 19.50 | 2.00 |
|
| 3/4" | 10 | 16.50 |
| 5/8" | 18 | 14.50 |
| M24 | 3.00 | 21.00 | 2.00 | 1.50 |
| 7/8" | 9 | 19.50 |
| 3/4" | 16 | 17.50 |
| M27 | 3.00 | 24.00 | 2.00 | 1.50 |
| 1" | 8 | 22.25 |
| 7/8" | 14 | 20.25 |
| M30 | 3.50 | 26.50 | 2.00 |
|
| 1 1/8" | 7 | 25.00 |
| 1" | 12 | 23.25 |
| M33 | 3.50 | 29.50 | 2.00 | 1.50 |
| 1 1/4" | 7 | 28.25 |
| 1 1/8" | 12 | 26.50 |
| M36 | 4.00 | 32.00 |
|
|
| 1 3/8" | 6 | 30.75 |
| 1 1/4" | 12 | 29.50 |
| M42 | 4.50 | 37.50 |
|
|
| 1 1/2" | 6 | 34.00 |
| 1 3/8" | 12 | 32.50 |
| M48 | 5.00 | 43.00 |
|
|
| 1 3/4" | 5 | 39.50 |
| 1 1/2" | 12 | 36.00 |
|
|
|
|
|
|
| 2" | 4 1/2 | 45.00 |
|
| ||
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