ST Fastening #12-24 x 2" HG Steelbinder Self-Drilling Metal Roofing Screw - Burnished Slate, Pkg 250 Bulk Composite Deck Screws The black phosphate coating is

The black phosphate coating is only suitable for use in dry interior environments

Caution: Oversized holes in the base material will reduce or eliminate the mechanical interlock of the threads with the base material and will reduce the anchor's load capacity

ensuring the drill point penetrates the steel and the threads fully engage the panel substrate

this Simpson Strong-Tie F08T162WDB Self-Drilling Fiber Cement Screw delivers

Slim profile allows driving in corners

ST Fastening #12-24 x 2" HG Steelbinder Self-Drilling Metal Roofing Screw - Burnished Slate, Pkg 250 Bulk Composite Deck Screws The black phosphate coating isHG Steelbinder Self Drilling Metal Roofing Screws provide fast, reliable fastening for metal roofing and siding to steel structures. With a self drilling tip for efficient installation and an EPDM washer for a watertight seal, their high grade materials ensure exceptional strength and durability in demanding environments. Key Features: Self Drilling Tip: Simplifies installation by eliminating the need for pre drilling. High Grade Construction: