The Small head Carriage bolt
, also called small mushroom head square neck bolt or round small head square neck bolts, the commonly used standrads are Chinese standard GB12,Infly Fasteners Inc is a manufacturers factory of GB/T 12 Small head Carriage Bolt, to supply to Mushroom small head square neck bolt and small Round head square neck bolt, we are according to GB12 and EN ISO 898.
About Small head Carriage bolt GB12, we can do:
Size: diameter:M5-M16, Length: 20-200mm
Material: Carbon steel class 4.8-8.8, Q195, 1008, 1035, 10B21
Surface: Self, colour, White zinc, Blue zinc, Yellow Zinc, Black, Hot dip galvanizing
Packing: bulk about 20KG-25KG carton and then on pallet.