ST Fastening #12 X 3-3/4" InsulDrill Metal Roofing Screw - Black | Qty. 1,000 (Carton) Rod Hanger Masonry Screws Two-Hour Fire Rating: Successfully tested

Two-Hour Fire Rating: Successfully tested according to ASTM E814 standards

Squared Bow Profile: Reduces pressure points and maximizes sling surface engagement

flat head increases the surface area for better grip on roofing materials

each washer supports a secure fit and proper bolt tensioning — critical in structural joints that bear high loads

providing flexibility and ease of use

ST Fastening #12 X 3-3/4" InsulDrill Metal Roofing Screw - Black | Qty. 1,000 (Carton) Rod Hanger Masonry Screws Two-Hour Fire Rating: Successfully testedSecure your metal roofing and siding projects with #12 InsulDrill Metal Roofing Screws, the trusted choice for post frame and residential applications. These high performance fasteners are engineered for long lasting durability, exceptional weather resistance, and a seamless installation process. Key Features: Self Drilling #1 Drill Point: Eliminates the need for pre drilling, allowing for efficient installation into metal and wood substrates. Durable