螺丝攻牙钻孔径和滚造径对照表85484

螺丝攻牙钻孔径和滚造径对照表公制粗螺纹美制粗螺纹螺纹规格 牙距 螺纹底孔直径规格标准径2级牙钻孔径规格(UNC)标准径2级牙钻孔径M2 标准 0.40 1.60 最大最小最大最小

腾讯文库螺丝攻牙钻孔径和滚造径对照表85484螺丝攻牙钻孔径和滚造径对照表85484