ISO 7380-1:2022 紧固件 可降低载荷的圆头螺钉 第1部分：内六角圆头螺钉

标准编号：ISO 7380-1:2022

中文名称：紧固件 可降低载荷的圆头螺钉 第1部分：内六角圆头螺钉

英文名称：Fasteners — Button head screws with reduced loadability — Part 1: Hexagon socket button head screws

发布日期：2022-12

标准范围

本文件规定了由于头部设计而导致负载能力降低的钢和不锈钢六角内六角按钮头螺钉的特性，这些螺钉具有公制粗螺距螺纹M3至M16，产品等级为A。在某些情况下，如果需要其他规格，可以从ISO？3506-1，以及ISO的尺寸选项？888还是ISO？4753.笔记？降低的负载能力（与本文件中规定的头部尺寸和六角套筒的穿透相关）意味着极限拉伸载荷的限制，该极限拉伸载荷由特定标记（性能等级前为零）表示。头部的负载能力假设为80？对于所有大小和所有属性类，线程中的百分比，请参见表？4.

This document specifies the characteristics of hexagon socket button head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M3 to M16, and with product grade A.

If, in certain cases, other specifications are requested, stainless steel grades can be selected from ISO 3506-1, and the dimensional options from ISO 888 or ISO 4753.

NOTE      The reduced loadability (related to the head dimensions in combination with penetration of the hexagon socket specified in this document) implies a limitation of ultimate tensile load shown by a specific marking (property class preceded by a zero). The loadability in the head is assumed to be 80 % of that in the thread for all sizes and all property classes, see Table 4.

标准预览图