Drywall Screws 3 Tianjin Ruiya Internation St Co., Ltd. Base Info Model NO.：DWSMaterial：Carbon SteelType：Hexagon HeadHead Style：RoundConnection：Common BoltGrade：12.9Trademark：E-starOrigin：China Mainland Description Pre：Black Phophsate Drywall Screw Next：Black Phosphated Gypsum Screw
