Round Head Hex Socke Bolt DIN912 Handan Zhengxin Fastener Manufacture Co., Ltd. Base Info Material:Carbon SteelType:Round HeadConnection:Common BoltHead Style:RoundStandard:DINGrade:10.9Application:MachineryFinish:Black Description Pre:Yellow Zinc Plated J-Type Hook Bolts with Wood Thread Next:JIS B 1178 L-Type Anchor Bolt with Carbon Steel Material