DIN981 Guk Nuk Precision Round Slotted Nylock Nut Handan Tianjia Fastener Co., Ltd. Base Info Model NO.:M10-M100Standard:DINMaterial:Low Carbon SteelConnection:FemaleSurface Treatment:Black OxideHead Type:RoundTrademark:tianjiaSpecification:CE RoHS SGSOrigin:HebeiHS Code:322007 Description Pre:High Pressure Resistant Copper Flat Washer Manufacturer Standard Size Copper Washer for Ship Next:Fastener Brass Copper Colored Metal Round Flat Plate Fender Washers Sealing Gasket Punched Ring Washer