Nuts SHENZHEN KEYSUN PRECISION TECHNOLOGY CO., LTD. Base Info Material：BrassType：Hexagon HeadConnection：Common BoltHead Style：HexagonalStandard：DIN, ANSI, GB, JIS, GOST, BSWGrade：6.8Specification：customizedOrigin：China Description Pre：Steel Galvanized Construction Wire Nails for Concrete/Umbrella Roofing Nails Next：Excellent Wood Screw Pan Head Self-Tapping Screw
