統一螺紋推薦攻牙鑽頭和間隙孔尺寸

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使用這些表格計算統一螺紋的相關尺寸鑽頭和間隙孔。

所有尺寸均以毫米 (mm) 為單位。

螺絲尺寸每英吋螺紋數小直徑絲錐鑽頭間隙孔鑽 - 所有材料
鋁、黃銅和塑膠 75% 螺紋不銹鋼、鋼和鐵 50% 螺紋緊密貼合自由搭配
數量或直徑大直徑鑽頭尺寸十進制等值鑽頭尺寸十進制等值鑽頭尺寸十進制等值鑽頭尺寸十進制等值
00.06800.04473/640.0469550.052520.0635500.07
10.073640.0538530.05951/160.0625480.076460.081
720.056530.0595520.0635
20.086560.0641500.07490.073430.089410.096
640.0668500.07480.076
30.099480.0734470.0785440.086370.104350.11
560.0771450.082430.089
40.112400.0813430.089410.096320.116300.1285
480.0864420.0935400.098
50.125400.0943380.10157/640.1094300.1285290.136
440.0971370.104350.11
60.138320.0997360.1065320.116270.144250.1495
80.164320.1257290.136270.144180.1695160.177
360.1299290.136260.147
100.19240.1389250.1495200.16190.19670.201
320.1517210.159180.1695
120.216240.1649160.177120.18920.22110.228
280.1722140.182100.1935
320.1777130.18590.196
1/40.25200.188770.2017/320.2188F0.257H0.266
280.206230.21310.228
320.21177/320.218810.228
5/160.3125180.2443F0.257J0.277P0.3230.332
240.26140.2729/320.2812
320.27429/320.2812L0.29
3/80.375160.29835/160.31250.3320.386X0.397
240.32390.332S0.348
320.336711/320.3438Ť0.358
7/160.4375140.3499U0.36825/640.390629/640.453115/320.4687
200.376225/640.390613/320.4062
280.39370.404Z0.413
1/20.5130.405627/640.421929/640.453133/640.515617/320.5312
200.438729/640.453115/320.4688
280.456215/320.468815/320.4688
9/160.5625120.460331/640.484433/640.515637/640.578119/320.5938
180.494333/640.515617/320.5312
240.511433/640.515617/320.5312
5/80.625110.513517/320.53129/160.562541/640.640621/320.6562
180.556837/640.578119/320.5938
240.573937/640.578119/320.5938
11/160.6875240.636441/640.640621/320.656245/640.703123/320.6562
3/40.75100.627321/320.656211/160.687549/640.765625/320.7812
160.673311/160.687545/640.7031
200.688745/640.703123/320.7188
13/160.8125200.751249/640.765625/320.781253/640.828127/320.8438
7/80.87590.738749/640.765651/640.796957/640.890629/320.9062
140.787413/160.812553/640.8281
200.813753/640.828127/320.8438
15/160.9375200.876257/640.890629/320.906261/640.953131/320.9688
1180.84667/80.87559/640.92191-1/641.01561-1/321.0313
120.897815/160.937561/640.9531
200.938761/640.953131/320.9688
1-1/161.0625180.9943111-1/641.01561-5/641.07811-3/321.0938
1-1/81.12570.949763/640.98441-1/321.03131-9/641.14061-5/321.1562
121.02281-3/641.04691-5/641.0781
181.05681-1/161.06251-5/641.0781
1-3/161.1875181.11931-1/81.1251-9/641.14061-13/641.20311-7/321.2188
1-1/41.2571.07471-7/641.10941-5/321.15621-17/641.26561-9/321.2812
121.14781-11/641.17191-13/641.2031
181.18181-3/161.18751-13/641.2031
1-5/161.3125181.24431-1/41.251-17/641.26561-21/641.32811-11/321.3438
1-3/81.37561.17051-7/321.21871-17/641.26561-25/641.39061-13/321.4062
121.27281-19/641.29691-21/641.3281
181.30681-5/161.31251-21/641.3281
1-7/161.4375181.36931-3/81.3751-25/641.39061-29/641.45311-15/321.4688
1-1/21.561.29551-11/321.34371-25/641.39061-33/641.51561-17/321.5312
121.39781-27/641.42191-7/161.4375
181.43181-7/161.43751-29/641.4531
1-9/161.5625181.49431-121.51-33/641.51561-37/641.57811-19/321.5938
1-5/81.625181.55681-9/161.56251-37/641.57811-41/641.64061-21/321.6562
1-11/161.6875181.61931-5/81.6251-41/641.64061-45/641.70311-23/321.7188
1-3/41.7551.50461-9/161.56251-5/81.6251-49/641.76591-25/321.7812

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