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1)different types of hexagon nut
2)standard:DIN 934,936,555,439,6915,6923,B1181-1961 JIS,B1181 JIS,UNI5587,IFID-6,D-8,D-14,ISO4032,4033,4034,AS1112,B.S.1083,1768,1769 GB/T41-2000,GB805-88,GB806-88 and so on.
3)class:4,6,8,10.
4)surface:plain, black,H.D.G,ZINC ......
5)material:carbon steel,35#,45#....
6)package:bulk packing,small boxes,pocket,as your requirement
7)model number:JL01
uni 5588 hexagon nut
