标 准 号：DIN 13-20-2000 简体中文标题：ISO一般用途米制螺纹.第20部分:带优先公差级的粗牙螺纹的尺寸极限.公称直径1mm-68mm 繁体中文标题：ISO一般用途米制螺纹.第20部分:带优先公差级的粗牙螺纹的尺寸极限.公称直径1mm-68mm English Name：ISO general purpose metric screw threads - Part 20: Limits of sizes for coarse pitch threads with the prefered tolerance classes; nominal sizes from 1 mm to 68 mm
