DIN, ANSI, GB, JIS, GOST, BSW
Carbon Steel, High Strength Steel, Stainless Steel
Hexagon, Round, Square, Countersunk, Pan, Mushroom
DIN, ANSI,
4.8, 5.6, 6.8, 8.8,
Machinery, Chemical Industry, Environmental
Hot Galvanizing, Black, Color-Zinc, Blue-White Zi
20-25kg/Carton+900kg/Pallet