钻尾螺丝根据执行标准可分为:国标GB/T,德标DIN,日标JIS,国际标准ISO。 A. 根据用途和形状还可以分为以下几个类别: 1.十字槽盘头自钻自攻螺钉.Cross recessed pan head drilling screws with tapping screw thread 执行标准:GB/T 15856.1-2002 有如下规格:(又称为圆头钻尾)
2.十字槽沉头自钻自攻螺钉.Cross recessed countersunk head drilling screws with tapping screw thread 执行标准:GB/T 15856.2-2002 有如下规格:(又称为平头钻尾,沙拉头钻尾)
3. 十字槽半沉头自钻自攻螺钉.Cross recessed countersunk head drilling screws with tapping screw thread 执行标准:GB/T 15856.3-2002 有如下规格: 此规格是半沉头在市场上较为少用。 4.六角法兰面自钻自攻螺钉.Hexagon flange head drilling screws with tapping screw thread 执行标准:GB/T 15856.4-2002 有如下规格:(又称为六角大华司钻尾,是钻尾螺丝中最常用且也是最大量的规格.)
5.六角凸缘自钻自攻螺钉.Hexagon washer head drilling screws with tapping screw thread 执行标准:GB/T 15856.5-2002 有如下规格:(又称为六角小华司钻尾,)
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