小五金手册

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[机械]实用钳工手册1. 螺钉 .............................................................................................6
1.1螺纹标志及尺寸 ............ ...... .......................................................6
1.1.1米制细牙螺纹 .... ......... .........................................................7
1.1.2米制粗牙螺纹 .... .......... .........................................................8
1.1.3英制细牙螺纹 .... ........... ........................................................8
1.1.4英制粗牙螺纹 .... ........... ....................................................... 9
1.2通孔孔径 ............... ........ ........................................................10
1.3攻螺纹孔孔径 .................... ...... ................................................11
1.3.1米制细牙螺纹 ...... ..................................................................11
1.3.2米制粗牙螺纹 ...... ..................................................................11
1.3.3英制细牙螺纹 ...... ..................................................................12
1.3.4英制粗牙螺纹 ...... ..................................................................13
1.3.5板材上孔与板边间距 ...... ............................................................13
1.4 配合尺寸 ...... ..........................................................................13
1.5 机械性能 ...... ..........................................................................13
1.6 钢板厚度 ...... ..........................................................................14
1.7 特殊螺钉 ...... ..........................................................................15
1.7.1 自攻螺钉 ...... ...................................................................15
1.7.1.1 硬化层深度 ...... ..............................................................15
1.7.1.2 硬度 ...... ...................................................................16
1.7.1.3 尺寸 ...... ...................................................................16