[SPECIFICATIONS] Diameter: #12 | Length: 3-3/4" | Color: Black | Quantity: 100ct | Material: Carbon Steel| Thread Design: 1/4" HWH | Head Type: Hex | Finish: Black e-Coat [#1 DRILL POINT] Penetrate steel thickness up to 18 gauge | Eliminates the need for pre-drilling, allowing for efficient installation into metal and wood substrates. [BLACK E-COAT] Features a robust black e-coat corrosion-resistant coating that ensures long-term durability [G-90 BONDED SEALING WASHER] Assembled to the fastener providing a watertight seal, preventing moisture penetration, and enhancing the longevity of your projects. [APPLICATIONS] Attaching metal roofing and siding in post-frame buildings, residential metal roofing projects, and securing steel and insulation to wood substrates Secure your metal roofing and siding projects with #12 InsulDrill Metal Roofing Screws (100-count), the trusted choice for post-frame, residential applications, and securing steel and insulation to wood substrates. The InsulDrill screws contain a Black e-Coat Corrosion Resistant Coating that ensures long-term durability. You can elimante the need of pre-drilling with the Self-Drilling #1 Drill Point. The G-90 Bonded Sealing Washer provides a watertight seal, preventing moisture penetration and enhancing the longevity of your projects.These high-performance fasteners are engineered for long-lasting durability, exceptional weather resistance, and a seamless installation process.