cap screw 1.Matrial: carbon steel, stainless steel,alloy steel. 2.Size:16~64(mm) 2.MOQ:1000units 3.competition price cap screw:1.Standard: DIN,ASTM2.Material:carbon steel, stainless steel,alloy steel. 3.packaging: carton box and pallet.we also supply other hardwares, such as selt-tapping screw, flat washer, forging bolt, investment bolt and so on, and we would like to make any products according ...