1.Hex socket flat head screw 2.Machine work available 3.OEM available 4.ISO9001:2000 5.Best after-sales service Product ... -60MM3.Material:common steel,carbn steel,stainless steel4.Grade:4.8,6.8,8.8,10.9,12.95 ... to customers' requirements2.Trade terms:FOBxiamen3.Delivery:within 15-30days 4.Payment terms: 30% pre T/T,70% before ... .,Ltd ,Shanghai XiajuanFasteners Co.,Ltd hex socket flat head screw