Hex Socket Flat Countersunk Head Cap Screw Shenzhen Shi Shi Tong Metal Products Co., Ltd. Base Info Model NO.：524Material：Carbon SteelType：Flat HeadGroove：HexagonConnection：Common BoltHead Style：Counter Sunk BoltStandard：DIN, GB, JISGrade：8.8 Description Pre：Nitto Type Brass Mold Water Hose Nipple Fitting Next：Nitto Standard Brass Male Nipple with Hose Barb
