1.5 内六角圆柱头螺钉
内六角圆柱头螺钉(GB/T 70.1—2000) 与开槽沉头螺钉相似,钉头埋入机件中,连接强度大,但需用相应规格的内六角扳手装卸螺钉。一般多用于各种机床及其附件上。其型式规格见表1.3.5。
表1.3.5 内六角圆柱头螺钉的规格尺寸/mm
续表
螺纹规格dM10M12(M14)M16M20M24M30M36s公称810121417192227min8.02510.02512.03214.03217.0519.06522.06527.065t min5678101215.519l长度范围16~10020~12025~14025~16030~20040~20045~20055~200
螺纹规格dM42M48M56M64b参考96106124140dkmax光滑头部63.0072.0084.0096.00滚花头部63.4672.4684.5496.54dsmax42.0048.0056.0064.00min41.6147.6155.5463.54e min36.5741.1346.8352.53s公称32364146min32.0836.0841.0846.08l min24283438l长度范围60~30070~30080~30090~300
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