ST Fastening #12 x 2-1/2" Self-Drilling Maxx Steelbinder Metal Roofing Screw, Hex Washer Head - Light Stone | Qty. 72,000 (Pallet) A307 Hex Bolts is 16 threads per inch

is 16 threads per inch and includes a 5/16" hex head (replacement driver bit — BITHEXR516-134)

Use a hammer drill to pre-drill a pilot hole if needed - especially in dense or older concrete

Snap-Loc Singles offer reusable tie-down points without needing full-length track

Ideal for framing

ST Fastening #12 x 2-1/2" Self-Drilling Maxx Steelbinder Metal Roofing Screw, Hex Washer Head - Light Stone | Qty. 72,000 (Pallet) A307 Hex Bolts is 16 threads per inchMaxx Steelbinder Self Drilling Roofing Screws are the ideal choice for securing metal roofing panels and siding to steel structures, delivering reliable performance in residential, agricultural, and industrial applications. Crafted from high grade materials, these screws feature a self drilling tip for quick installation and a bonded washer with an EPDM seal to ensure a watertight, corrosion resistant connection in even the toughest conditions. Key