Material: carbon steel.
Grade: carbon steel,hot galvanizing,Hard.
Surface treatment: white zinc plated, color zinc plated, hot galvanizing
Kinds: long spring, short spring,no spring
Packing: 200pcs/box
Box size: 35.5 x 20 x 9.5cm
Size: M6-M18(DIN) 1/4-7/8(ASNI/BS)






