These carriage bolts are suitable for fastening most machinery and equipment. They have a zinc or zinc yellow-chromate plating to resist corrosion in wet environments. A square neck keeps them from turning when tightening a nut. A smooth, rounded head provides a finished look.
1.Standard:DIN603, ASME B18.5
4.Grade:4.8 8.8 10.9
5.Mark:4.8 8.8 10.9
6.Material:carbon steel or alloy steel
7.Finish:plain,black,zinc plated ,hdg ,dacroment,geomet and so on.
8.Delivery time:Normally in 30-40 days.
9.Package:Cartons&pallets or according to customer's requirement.