Din 7976 Hex Head Self Tapping Screw Hangzhou Huachao Fastener Co., Ltd. Base Info Model NO.:DIN7504NMaterial:Carbon SteelShape of Head:HexagonSurface Finishing:Zinc PlatedCertification:ISO, GSCustomized:CustomizedTrademark:HANGCHAOOrigin:ChinaHS Code:73181500 Description Pre:Brass Fitting /Pneumatic Fitting (TPM4) Next:Roast Color Hex Washer Head Self Drilling Screw