![GB/T13806.1-1992-精密机械用紧固件十字槽半沉头螺钉[标准|规格]](http://www.posttic.com/d/file/biaozhun/2015-11-04/1123c38dd51f70308ea922418dc9d9ae.jpg)
国标GB /T13806.1-1992 GB13806.1 13806.1GB 精密机械用
![HG/T20635-2009-钢制管法兰、垫片、紧固件选用配合规定六角螺母[标准|规格]](http://www.posttic.com/d/file/biaozhun/2015-11-24/2d870c5b8c04666824dae718baf283d5.jpg)
化工标准HG /T20635-2009 HG20635 20635HG 钢制管法兰、垫片、
![英、美制汽车紧固件用精制大平垫table6-BS3410-1961[标准|规格]](http://www.posttic.com/d/file/biaozhun/2015-12-06/f26c2cb8d87dbb40a980048190b02540.jpg)
英标BS 3410-1961 BS3410 3410BS 英、美制汽车紧固件用精制大平垫t
![紧固件机械性能自攻螺钉-GB/T3098.5-2000[标准|规格]](http://www.posttic.com/d/file/biaozhun/2015-12-08/a754658901d0b08bfbb0ec4dd78c8a1b.jpg)
国标GB /T3098.5-2000 GB3098.5 3098.5GB 紧固件机械性能
![紧固件机械性能螺母锥形保证载荷试验-GB/T3098.12-1996[标准|规格]](http://www.posttic.com/d/file/biaozhun/2015-12-08/19e7dfdc67fbd60d0c2424fe42c62898.jpg)
国标GB /T3098.12-1996 GB3098.12 3098.12GB 紧固件机械
![紧固件公差-200℃~+700℃使用的螺栓-螺母连接副-GB/T3103.4-2014[标准|规格]](http://www.posttic.com/d/file/biaozhun/2015-12-31/c87be64bad731808f4d9e1a0b17941d5.jpg)
国标GB /T3103.4-2014 GB3103.4 3103.4GB 紧固件公差 -2