Non-standard Steel Nut 1.Nominal Diameter:M6-M100 2.Length:10-1000 mm 3 ... 4.8,8.8,10.9,12.9 4.Surface:black,zinc-plated Various fastener producer in China.Mainly include: hex ... .8,8.8,10.9,12.94.Standard : GB,DIN,ANSI,BS ect 5.Surface: black, zinc-plate, Nickel-plate, etc We ... can do the surface treatment as per your requirements.6, Non-standard is welcomed ...