DIN, ANSI, GB, JIS, GOST, BSW
4.8/6.8/8.8/10.9/12.9
Machinery,Chemical Industry, Environmental,Buildin
Hot Galvanizing, Black, Color-Zinc, Blue-White
ISO9001:2015
Hex Head Structural Heavy Nuts A563 2h Carbon Stee
20-25kg Carton+900kg/Pallet
customized