文档介绍：--------------------------校验:_____________-----------------------日期:_____________螺纹大径螺纹大径:MajorDiam螺纹中径:Pitchdiam螺纹底径:Minordiam通止规:Go/Nogogage机械性能:mechanicalandphysicalpropertiesunifiedthread统一英制螺纹Lustratehydrogenaftergalvanizingtoavoidhydrogenembrittlement镀后去氢,防止氢脆Casecarburization表面渗碳Withacrossflats对边Withacrosscorners对角Radiusoffillet:ing红镦PC8=propertyclass8机械性能8级原材料:Rawmaterial球化退火:Annealing冷拔:Drawing冷镦:Forming机加工:Machining螺纹成型:RollThreading热处理:heat-treatment表面处理:finish去氢:Lustratinghydrogen检验:Inspection包装:Packing入库:Stocking车床:lathe磨制:grinding红打:ing冲压:punchingDiameter直径Length长度1标准GB(国标)ISO(国际标准)DIN(德制)JIS(日标)ANSI/ASME(美标)BA(英制)(公制牙)(美制螺栓螺帽垫圈BO=blackoxide氧化发黑IHH=indhexhead锯六角头PH=phillips十字槽sw/fw=splitwasher/flatwasher弹垫平垫kepnut锁紧螺母cementation渗碳acornnut盖形螺母螺丝法兰法兰CSK沙拉头(沉头)Largewafer大扁平头Bugle喇叭头Truss盘头带垫Pozi米制槽Phill十字槽Serra-tion垫下带花FlowerHead开花头6-bobesrecess内梅花Pistonbolt活塞螺钉Windingbolt线圈螺钉Hexagonheadbolts-fullthread六角头螺栓全螺纹Carriagebolt马车螺栓Squareheadbolt-productgradeC方头螺栓C级Flatcountersunksquareneckbolts沉头方颈螺栓Flatcountersunknibbolts沉头带榫螺栓常用紧固件英语Cupheadsquareneckbolts半圆头方螺栓Cupheadnibbolts半圆头带榫螺栓Cupheadsquareneckboltswithlargehead–productgradeC大半圆头方颈螺栓C级