M5.0X16 M5.0X21 1/8 Inchx12 Torx Screws for Carbide Inserts Dongguan Yasam Cutting Tools Co., Ltd. Base Info Model NO.:M5.0x16 M5.0X21 1,8 inchX12Material:High Strength SteelType:Torx ScrewsGroove:Flower WordConnection:Common BoltHead Style:RoundStandard:GBGrade:12.9 Description Pre:M3.5X11 M4.0X8 M4.5X9 M4.5X15 Torx Screws for Threading Inserts Next:DIN975 Threaded Rod