Hex Head Machine Screw Hangzhou Huachao Fastener Co., Ltd. Base Info Material：Carbon SteelShape of Head：HexagonSurface Finishing：Zinc PlatedCertification：ISOCustomized：CustomizedTrademark：HANGCHAOOrigin：ChinaHS Code：73181500 Description Pre：Half Nipple Next：Carbon Steel Hex Socket Slotted Set Screw With Cup Point (CH-SET SCREW-005)
