Hex Coupling Nut Handan Guantong Fastener Co., Ltd Base Info Material：Carbon SteelType：Hexagon HeadConnection：Common BoltHead Style：HexagonalStandard：DIN, BSWGrade：4.8Specification：3,8, 1,2, 5,8, M6-20Origin：ChinaHS Code：7318160000 Description Pre：Paper Strip Nail, Framing Nails (SQP2875) Next：7x4x8 Hollow Rivets for Bags Shoes Garments
