1.Material: Carbon spring steel ( Mn65, 50CRV4, C67, SK5), Stainless steel (SS304) etc
2.Size:M10-M100
3.Standard: GB, DIN, ISO, ANSI/ASTM, B7, BS, JIS etc
4.Model:DIN471,DIN472,DIN6799,M1308,M1408,N1308,D1300,D1400,D1460,D1500,ETC
5.Size:m3-m500
6.Finish:black ,plain,zinc ,plain,etc
7.OEM accepted
8.Competitive price and high quality
9.Main market: Italy,England,Russia,Turkey,America,Canada,Brazil, Argentina,Peru,Ecuador,South Africa, Australia,Singapore, New Zealand, Iran, etc