... / 4.Material:Carbon steel,Stainless steel Specification of our nut: 1.NameDIN6923 Hexagon flange nut2.StandardDIN, IFI, ISO, JIS, AS,BS, ... of nuts we can offer?1.NameHex nut, Coupling nut, Nylon lock nut, Spring lock nut, Square nut,Wing nut,etc2.StandardDIN, IFI, ISO, JIS, ... small box, then pallet or wooden case11.CertificateISO9001:2008Thank you for clicking our product,if you have any interest,pls do ...