ST Fastening #12 X 4-1/2" InsulDrill Metal Roofing Screw - Burnished Slate, Pkg 100 Drywall Screw Guns Black phosphate coating for moderate

Black phosphate coating for moderate corrosion resistance in dry interior environments

and bracing

Its gripping section holds the bolt without a nut

each anchor features a serrated cutting thread and patented raised-rib design that eliminates the need for expansion

Lumber Size: Intended for use with 5x beams and 4x posts/columns and includes necessary SDS screws for quick installation

ST Fastening #12 X 4-1/2" InsulDrill Metal Roofing Screw - Burnished Slate, Pkg 100 Drywall Screw Guns Black phosphate coating for moderateThe ST Fastening #12 InsulDrill Metal Roofing Screw is built to meet the demands of commercial and industrial insulation applications. Whether youre anchoring insulation boards to steel decks or securing metal panels to purlins, these screws are engineered for performance, strength, and longevity. Designed with precision threading and a sharp self drilling point, InsulDrill screws eliminate the need for pre drillingreducing labor time while delivering