The Implosion Type Expansion Bolt Handan Tianjia Fastener Co., Ltd. Base Info Model NO.:M6-M16Material:Carbon SteelType:Round HeadConnection:Common BoltHead Style:RoundStandard:DIN, ANSI, GB, JIS, BSW, GOSTGrade:4.8Application:BuildingFinish:Hot GalvanizingM6-M16:25-80 Description Pre:Custom Blue Zinc Plated Pan Head Square Drive Self Tapping Screws Next:Custmozied M8 Stainless Steel Furniture Connector Plate Nut