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英制鋼絲螺套（螺紋護套）粗細牙尺寸規(guī)格參數(shù)

英制鋼絲螺套（螺紋護套）粗細牙尺寸規(guī)格參數(shù)明細如下：
UNC 表示為粗牙，UNF表示為細牙
UNC UNF統(tǒng)一螺紋 鋼絲螺套（螺紋護套）規(guī)格參數(shù)表
直徑號-牙數(shù) 直徑 螺距 k×d 安裝后長度L(mm) 安裝前圈數(shù)N(≈) 安裝前外徑(mm)  鉆頭直徑do(mm) 
2-56 2.184 　 1d 2.18 3.3 2.7-3.1                         2.3
0.454 1.5d 3.28 5
　 2d 4.37 6.8
4-40 2.845 　 1d 2.9 3.2 3.6-4.0                         3.0
0.635 1.5d 4.3 5.1
　 2d 5.8 7.2
5-40 3.175 　 1d 3.2 3.7 4.0-4.4                         3.3
0.635 1.5d 4.8 5.9
　 2d 6.4 8.2
6-32 3.505 　 1d 3.5 2.8 4.5-4.9                         3.7
0.794 1.5d 5.3 4.8
　 2d 7 6.8
8-32 4.166 　 1d 4.2 4 5.2-5.6                         4.4
0.794 1.5d 6.25 6
　 2d 8.3 8.7
8-36 4.166 　 1d 4.2 4.5 5.1-5.6                         4.3
0.706 1.5d 6.3 7.2
　 2d 8.3 9.7
10-24 4.826 　 1d 4.8 3.3 6.1-6.6                         5.1
1.058 1.5d 7.2 5.4
　 2d 9.6 7.5
10-32 4.826 　 1d 4.83 4.3 5.9-6.5                         5.0
0.794 1.5d 7.24 6.9
　 2d 9.6 9.5
12-24 5.486 　 1d 5.5 4 6.8-7.2                         5.8
1.058 1.5d 8.2 6.3
　 2d 11 8.8
1/4"-20 6.35 　 1d 6.4 3.9 7.8-8.3                         6.7
1.27 1.5d 9.5 6.2
　 2d 12.7 8.6
1/4"-28 6.35 　 1d 6.35 5.3 7.7-8.3                         6.6
0.907 1.5d 9.5 8.6
　 2d 12.7 11.8
5/16"-18 7.938 　 1d 7.9 4.3 9.6-10.2                         8.3
1.411 1.5d 11.9 6.8
　 2d 15.9 9.4
5/16"-24 7.938 　 1d 7.9 5.9 9.6-10.2                         8.2
1.058 1.5d 11.9 9.4
　 2d 15.9 12.8
3/8"-16 9.525 　 1d 9.5 4.8 11.4-11.9                         9.9
1.588 1.5d 14.3 7.7
　 2d 19.1 10.6
3/8"-24 9.525 　 1d 9.5 7.3 11.4-11.9                         9.8
1.058 1.5d 14.3 11.5
　 2d 19.1 15.6
7/16"-14 11.113 　 1d 11.1 4.9 13.3-13.9                       11.6
1.814 1.5d 16.7 7.9
　 2d 22.2 10.7
7/16"-20 11.113 　 1d 11.1 7 13.3-13.7                       11.4
1.27 1.5d 16.7 11.1
　 2d 22.2 15
1/2"-13 12.7 　 1d 12.7 5.2 15.1-15.7                       13.2
1.954 1.5d 19.1 8.3
　 2d 25.4 11.4
1/2"-20 12.7 　 1d 12.7 7.9 15-15.6                       13.0
1.27 1.5d 19.1 12.8
　 2d 25.4 17.3
9/16"-18 14.288 　 1d 14.3 7.9 16.91-17.55                       14.6
1.411 1.5d 21.5 12
　 2d 28.6 16
5/8"-11 15.875 　 1d 15.9 5.7 18.8-19.4                       16.5
2.309 1.5d 23.8 9
　 2d 31.8 12.3
5/8"-18 15.875 　 1d 15.9 9.4 18.6-19.3                       16.2
1.411 1.5d 23.8 14.5
　 2d 31.8 19.7
3/4"-10 19.05 　 1d 19.1 6.3 22.3-23.0                       19.7
2.54 1.5d 28.6 9.9
　 2d 38.1 13.5
3/4"-16 19.05 　 1d 19.1 10.1 22.2-22.8                       19.4
1.588 1.5d 28.6 15.6
　 2d 31.8 21
7/8"-14 22.225 　 1d 22.2 10.3 25.9-26.7                       22.6
1.814 1.5d 33.3 15.9
　 2d 44.5 21.6
1"-8 25.4 　 1d 25.4 6.8 29.6-30.4                       26.1
3.175 1.5d 38.1 10.6
　 2d 50.8 15.4
1"-12 25.4 2.117 1d 25.4 10 29.6-30.4                       30.0
1.5d 38.1 15.6
1"-14 25.4 　 1d 25.4 11.8 29.6-30.4                       25.9
1.814 1.5d 38.1 18.1
　 2d 50.8 24.5
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