目录修订履历...........................................................................................................................................................31.介紹....................................................................................................................................................................41.1目的....................................................................................................................................................................41.2範圍....................................................................................................................................................................42.螺牙.....................................................................................................................................................................82.1定义....................................................................................................................................................................62.2分类....................................................................................................................................................................82.3精度等级..............................................................................................................................................................82.4螺纹标注.............................................................................................................................................................92.5基本尺寸..........................................................................................................................................................103.铝合金...............................................................................................................................................................103.1铝合金成分.......................................................................................................................................................104.公差.................................................................................................................................................................124.1ISO..................................................................................................................................................................124.2JIS....................................................................................................................................................................124.3DIN..................................................................................................................................................................124.4GB....................................................................................................................................................................145参考文件..........................................................................................................................................................15修订履历1.介绍1.1目的定义产品的外观信息,包括:装配的公差,特殊的外观要求以及在允许范围内的和通用标准的偏差。1.2范围适用于公司所生产的所有压铸件产品，客户特别规定的除外。2.螺牙2.1定义螺纹：在圆柱或圆锥表面上,沿着螺旋线所形成的具有规定牙形的连续凸起。内螺纹：在圆柱或圆锥内表面...
