螺纹规格尺寸表如下:
公制螺纹尺寸规格表(ISO 68-1标准)
| 尺寸 | 螺距 | 螺纹外径(mm) | 每毫米螺纹数 |
|------|------|--------------|--------------|
| M1 | 0.25 | 1.00 | 25 |
| M1.2 | 0.25 | 1.20 | 25 |
| M1.4 | 0.30 | 1.40 | 33.3 |
| M1.6 | 0.35 | 1.60 | 28.6 |
| M2 | 0.40 | 2.00 | 25 |
| M2.5 | 0.45 | 2.50 | 22.2 |
| M3 | 0.50 | 3.00 | 20 |
| M4 | 0.70 | 4.00 | 14.3 |
| M5 | 0.80 | 5.00 | 12.5 |
| M6 | 1.00 | 6.00 | 10 |
| M8 | 1.25 | 8.00 | 8|
| M10 | 1.50 | 10.00| 6.7 |
| M12 | 1.75 | 12.00| 5.3 |
| M14 | 2.00 | 14.00| 7|
| M16 | 2.00 | 16.00| 6.25 |
| M18 | 2.50 | 18.00| 5.56 |
| M20 | 2.50 | 20.00| 5|
英制螺纹尺寸规格表
圆柱管螺纹(55°)
UNC(粗牙): 1/4″ 8 19 12.7 11.2 9.7 14
UNF(细牙): 1/4″ 18 13.2-0.2 11.4+0.2 10.2 14
圆锥管螺纹(55°)
BSPP(英制): 1/4″ 8 19 12.7 11.2 9.7 14
BSPT(英制): 1/4″ 18 13.2-0.2 11.4+0.2 10.2 14
圆锥管螺纹(60°)
NPT(美制): 1/4″ 8 19 12.7 11.2 9.7 14
其他英制管螺纹
BSW(粗牙): 1/8 3/16 7/32 1/4 9/32 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 7/8 1 1 1/8 1 1/4 1 3/8 1 1/2 1 5/8 1 3/4 2 2 1/4 2 1/2 3.18 4.76 5.56 6.35 7.14 7.94
BSF(细牙): 1/8 3/16 7/32 1/4 9/32 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 7/8 1 1 1/8 1 1/4 1 3/8 1 1/2 1 5/8 1 3/4 2 2 1/4 2 1/2 3.18 4.76 5