DIN7504-P self drilling screw Hangzhou Huachao Fastener Co., Ltd. Base Info Model NO.:DIN7504PMaterial:Carbon SteelShape of Head:PlatSurface Finishing:Zinc PlatedCertification:ISOCustomized:CustomizedTrademark:HANGCHAOOrigin:CHINA Description Pre:High Temperature Resistant Round Silicone Gaskets Next:self tapping screw with EPDM