... .6-10.9 bolt 3. Surface: plain ,zp ,HDG 4.mild steel grade 4.6-10.9 CARRIAGE BOLT MUSHROOM HEAD SHORT ... ).Place of delivery:FOBshanghai Grade 2 Carriage Bolt 1. Material: Steel 2. Size: M5-M20 / 1/4"-3/4" 3. Specification ... 2 Carriage BoltStandardDIN, ANSI, ASME, ASTM, IFI, JIS, ASMaterialLow carbon steel etc.SizeM5-M64,1/4”-3/4”Length4mm-300mm, 1 ...