螺丝攻牙钻孔径和滚丝径对照表公制粗螺纹美制粗螺纹规格标准径2 级牙钻孔径规格(UNC)标准径2 级牙钻孔径最大最小最大最小M1.0x0.250.750.7850.729NO.1-64(1.854)1.551.5821.425M1.1x0.250.850.8850.829NO.2-56(2.184)1.801.8711.695M1.2x0.250.950.9850.985NO.3-4...
时间:2025-03-13 00:14栏目:行业资料
时间:2025-02-07 16:24栏目:行业资料