All Kinds of High Quality Nuts Nuts Factory Price Shenzhen Mingshi Technology Co., Ltd Base Info Model NO.：M4Material：Stainless SteelType：Hexagon HeadConnection：Common BoltHead Style：HexagonalStandard：DINGrade：4.8Trademark：M4Transport Package：Carton BoxOrigin：Wuxi Description Pre：A563 High Strength Hexagon Black Nut Next：Black Carbon Steel Nut ASTM A563
