... head screw material :SS 304 ,316,201 ,202 size:1/4-1" coating:bright stainless hex socket head screw material :SS 304 ... ,316,201 ,202size:1/4-2"coating:brightFeature:1) Standards: DIN,IFI,JIS ,BS2) Material: carbon steel ... ,SS304 or SS 3163) Size: M4-M24,1/4"--1"4)Coating:ZINC ,HDG, BRIGHT5)Thread:FINE ,CROSE ,METRIC6 ...