High Strength Carriage Bolt DIN603 Finish ZINC, Plain, Black Place of Origin Ningbo, China Brand Name MILFAST Standard DIN603 Size M4-M100 Grade 4.8,8.8,10.9,12.9 Sample Freely Supplied Packing 25kgs per box,36 boxes per pallet,900kgs per pallet Brand M Surface treatment Black,zinc plated,zinc(yellow)plated,H.D.G etc,Dacroment Material Stainless steel, Steel, Carbon steel, Other attributes Packaging Details Small Poly bag+ Carton Or customization Port Ningbo Supply Ability 500 Ton/Tons per Month Delivery time Normally in 30-40 days