Specially designed screws for attaching Durock cement board to wood framing. Corrosion-resistant and has wafer heads with ribs to prevent strip out. 1-1/4″ long screws are used for applying 5/16″ Durock underlayment or 1/4″, 1/2″, and 5/8″ Durock cement board to subfloors and countertops or 1/4″ and 1/2″ Durock cement board to walls. 200 screws per package. No. 170189: Thread Diameter: 8, Length: 1-1/4 In., Head Type: Wafer, Finish: Corrosion Resistant Coating, Material: Steel, Shank Diameter: 8, Drive Type: Square/Phillips, Pkg Qty: 200, Package Type: Jar
