美制粗螺

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美制粗螺美制粗螺纹

规格 （UNC)标准径2级牙钻孔径
最大最小

NO.1-64(1.854)1.551.5821.425
NO.2-56(2.184)1.801.8711.695
NO.3-48(2.515)2.102.1461.941
NO.4-40(2.845)2.302.3852.157
NO.5-40(3.175)2.602.6972.487
NO.6-32(3.505)2.802.8952.642
NO.8-32(4.166)3.403.5303.302
NO.10-24(4.826)3.903.9623.683
NO.12-24(5.486)4.504.5974.344
1/4 -205.105.2574.979