C1022 Hex Big Flange Head Knurled Self Drilling Screw with Ruspert Guangdong Boito Building Technology Co., Ltd. Material:Carbon SteelType:Hexagon Head With FlangeHead Style:HexagonalStandard:DIN, GBSurface Treatment:RuspertTransport Package:Plastic Bag+Yellow Plain Carton+Plywood Pallet, or Base Info Model NO.:BT003Specification:6.3-14*LOrigin:Guangdong, ChinaHS Code:7318159090 Description Overview Product DescriptionDetailed PhotosCertificationsCompany Profile StockFactory Pre:Blind Alloy Steel Flanges 1/2" Class 300 Inconel 600 Flange for Gas Water and Oil Next:Hexagonal Washer Head Self-Drilling Screw with EPDM Washer