... ,Stainless steel Specification of our nut: 1.NameLong round nut with side hole2.StandardDIN, IFI, ISO, JIS, AS,BS, EN, ... SizeM8-M487.FinishPlain, Zinc plated,Passivated, Nickel plated, H.D.G., Black Oxided, Dacromet,Geomet,etc8.Production TechniqueCold forming, ... SizeM5-M1007.FinishPlain, Zinc plated,Passivated, Nickel plated, H.D.G., Black Oxided, Dacromet,Geomet,etc8.Production TechniqueCold forming, ...