High Strength Hex Bolt Hexagon Bolt DIN933 Wenzhou Jianhong Machinery Co., Ltd. Base Info Material：Carbon Steel,Stainless SteelType：Hexagon HeadHead Style：HexagonalStandard：DINGrade：8.8,10.9,12.9Finish：Blue-White Zinc Plated Description Pre：Flat Head Slotted Drive Machine Screw DIN963 Next：Conical Washer
