ST Fastening 1/4" x 7/8" Self-Drilling ZXL Steelbinder Metal Roofing Stitch Screw, Cupped Washer Head - Black | Qty. 96,000 (Pallet) Transport Chain and Binders - Made in USA It features a patented undercutting

It features a patented undercutting thread design that taps into uncracked and cracked concrete for a secure mechanical connection

these mailers help protect contents from outside heat

Hi-Low Thread Design: Reduces torque and improves grip in masonry

Two Rows of Welded D-Rings: Strategically placed for secure tie-downs

ST Fastening 1/4" x 7/8" Self-Drilling ZXL Steelbinder Metal Roofing Stitch Screw, Cupped Washer Head - Black | Qty. 96,000 (Pallet) Transport Chain and Binders - Made in USA It features a patented undercuttingThe #12 ZXL Steelbinder Self Drilling Metal Roofing Screws are engineered for precision and durability, providing a secure connection for metal roofing panels and siding to steel structures. Perfect for residential, commercial, and agricultural applications, these screws feature a self drilling tip that streamlines installation and a bonded EPDM washer to ensure long lasting, watertight performance. Designed to resist the harshest elements, ZXL screws