管用牙基準寸法
美制管牙絲攻 | NPT | NPS |
1/16-27 | 6.25 | 6.35 |
1/8-27 | 8.43 | 8.74 |
1/4-18 | 11.13 | 11.13 |
3/8-18 | 14.28 | 14.68 |
1/2-14 | 17.86 | 18.26 |
3/4-14 | 23.01 | 23.42 |
1”-11 1/2 | 28.98 | 29.36 |
1 1/4-11 1/2 | 37.69 | 38.10 |
1 1/2-11 1/2 | 44.04 | 44.45 |
2”-11 1/2 | 55.96 | 56.36 |
英制管牙絲攻 | PT(RC) | PF(G) |
1/16-28 | 6.2 | 6.7 |
1/8-28 | 8.4 | 8.7 |
1/4-19 | 11.2 | 11.8 |
3/8-19 | 14.75 | 15.2 |
1/2-14 | 18.25 | 19 |
5/8-14 | / | 21 |
3/4-14 | 23.75 | 24.5 |
7/8-14 | / | 28.25 |
1”-11 | 30 | 30.5 |
1 1/4-11 | 38.5 | 39.2 |
1 1/2-11 | 44.5 | 45 |
2”-11 | 56.5 | 57 |
2 1/2”-11 | 71.5 | 72.8 |
3”-11 | / | 85.5 |
各施工方式及使用工具不盡相同,上述技術資料僅供參考