标准摘要
[中文适用范围]： 本文件规定了具有凹槽（全金属）的六角厚螺母的特性，适用于钢和不锈钢材质，公制粗牙螺纹尺寸为M5至M39，产品等级为A和B。注：这些螺母的设计采用了ISO 4032中规定的mmin，并且整体高度h大于ISO 7042中的规定，以适应带凹槽的保持扭矩特性；此高度h有助于提高螺母的抗力，因为其参与啮合的螺纹数量较多。hmin值是根据hmax以及hmax/D的比值计算得出的，随着直径的增加，该比值呈规律性变化；因此，公差（hmax - hmin）并不遵循ISO公差等级系统（IT系统）。在某些特定情况下，如需其他规格，可从ISO 898-2或ISO 3506-2中选择相应的性能等级和不锈钢牌号。 [外文原描述]： This document specifies the characteristics of prevailing torque (all metal) hexagon high nuts with slot(s), in steel and stainless steel, with metric coarse pitch thread M5 to M39, and with product grades A and B. NOTE These nuts are designed with m min as specified ISO 4032 and with an overall height h greater than in ISO 7042, in order to accommodate the prevailing torque feature with slot(s); this height h contributes to the nut resistance due to the number of engaged threads. h min values have been calculated as a function of h max together with a ratio h max / D that progresses regularly with increasing diameter; therefore, the tolerance ( h max – h min ) does not follow the ISO code system for tolerances (IT system). If in certain cases other specifications are requested, property classes and stainless steel grades can be selected from ISO 898-2 or ISO 3506-2.
英文名称Fasteners — Prevailing torque hexagon nuts — High nuts (all metal) with slot(s)