Standard: Gb1228-1231, iso 7412, din 6914-6916, Astm a325, astm a490, astm a325m, astm a490m, jisb1186 as1252 Grade: 8.8s, 10.9s , 10.9hv, a325/a325m , a490/a490m, f8t, f10t Size:M12£m36, 1/2-1-1/2 Surface treatment: Plain, black, zinc plated, hdg Material:Carbon steel , alloy steel By cartons and then on wooden pallet or according to the customer requirment.