Collated Screws Tianjin Ruiya Internation St Co., Ltd. Base Info Material:Carbon SteelType:Hexagon HeadHead Style:RoundConnection:Common BoltGrade:12.9Trademark:E-starOrigin:China Mainland Description Pre:Drywall Screw / Grey Phosphate Fine Thread (C1022) Next:Pneumatic Fitting for Lengthen L Type Dual Through (PLL10-03)