Product description 1 Stainless Steel Section 2 Hardened Steel Section 1 Grip Length 2 Lifespan 3 Torque and Strength 4 Pull-out Force

• 🔩 Corrosion-Resistant Stainless Steel 304 – Made from high-grade 18-8 stainless steel, these self-drilling screws offer exceptional rust and corrosion resistance, making them perfect for outdoor applications like solar panel installation, roofing repair, and metal-to-metal fastening.
• 🔩 Hardened Alloy Steel Tip – High Drilling Capacity – Featuring a precision-hardened steel tip, these self-drilling screws penetrate up to .196 inch (5mm) of mild steel or aluminum, ensuring strong, durable fastening without pre-drilling.
• 🔩 Bi-Metal Construction for Maximum Strength – Combining a stainless steel body with a hardened steel drilling tip, these screws offer superior durability, reduced breakage, and heat dissipation, increasing efficiency and lifespan in high-performance applications.
• 🔩 5/16" A/F Hex Washer Head – No Cam-Out & Maximum Torque – The hex head design ensures optimal torque transfer while preventing cam-out and stripping, making installation smooth, secure, and hassle-free. This design also provides a larger surface-bearing area for enhanced clamping force.
• 🔩 Versatile & Time-Saving Installation – No need for pre-drilling! These self-drilling metal screws are perfect for DIY projects, construction, and industrial applications, providing quick, easy, and secure fastening for steel structures, roofing, and more.