Description
ST Fastening #12 x 3" ZXL Steelbinder Self Drilling Metal Roofing Screw Light Gray, Pkg 250 4" Chain Extension Ratchet Straps The wings on the screw The wings on the screw point are designed to ream a larger hole in the wood and break off when they hit the metal so the wood can be drawn tight to the steel 20 below the hook lifting device standards