文档介绍：标准件选用手册
目次
1紧固件产品分类…………………………………………………………………………………………………1
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2紧固件常用螺纹…………………………………………………………………………………………………2
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(含锁紧)螺钉用螺纹、螺杆螺纹……………………………………………………………………5
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3紧固件的机械性能………………………………………………………………………………………………6
、螺钉、螺柱的机械性能……………………………………………………………………………6
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螺栓、螺钉、螺柱的性能等级……………………………………………………………………………6
材料和热处理、回火温度…………………………………………………………………………………6
螺栓、螺钉和螺柱的机械和物理性能……………………………………………………………………7
粗牙螺纹最小拉力载荷……………………………………………………………………………………8
粗牙螺纹保证载荷…………………………………………………………………………………………9
细牙螺纹最小拉力载荷……………………………………………………………………………………10
细牙螺纹保证载荷…………………………………………………………………………………………11
(粗牙、细牙)的机械性能……………………………………………………………………………12
适用范围…………………………………………………………………………………………………12
螺母粗牙螺纹的性能等级………………………………………………………………………………12
螺母细牙螺纹的性能等级………………………………………………………………………………17
自攻螺钉……………………………………………………………………………………………………20
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蝶形螺母保证扭矩…………………………………………………………………………………………22
4 紧固件的连接方式选用………………………………………………………………………………………22
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