CARRIAGE BOLT MUSHROOM HEAD SHORT SQUARE NECK BOLTS (CARRIAGE BOLT ) CARRIAGE BOLT MUSHROOM HEAD SHORT SQUARE NECK BOLTS1).Diameter range:5-20MM2).Length range:10-500MM3).Surface: plain ,zp ,HDG (according to the customer)4).Grade:4.8-8.85).Packing:25 kgs in box6).Delivery period:45days7).Type of payment:30% by T/T in advance,70%see the copy od B/L8).Place of delivery:FOBshanghai