150-pack #4 x 1 Black Flat Head Self Tapping Screws for Wood/Sheet Metal/Plastic, Stainless Steel 304(18/8), Rust-Resistant Screws, Phillips Bit Included
Thread Size: #12 (0.215 inch); Whole Length: 1 inch; Head Diameter: 0.39 inch (min); 1 pcs Phillips driver bit PH3 included
Crafted from corrosion-resistant Grade 304 Stainless Steel for strength and light oxidation resistance. Enhanced by a smooth black e-coated finish, it adds extra rust protection in indoor environments while delivering a professional appearance. Burr-free surface ensures easy handling and clean installation
Countersunk Head & Self-Tapping Threads: The flat countersunk head sits flush with surfaces for a clean look and no snagging. Sharp self-tapping threads cut through sheet metal, hardwood, PVC, and fiberglass without pre-drilling – saving time and reducing tool requirements
Universal Tool Compatibility & Reduced Cam-Out: Deeply etched Phillips drive accommodates standard screwdrivers and power drills. Optimized groove geometry minimizes cam-out (bit slippage) for faster driving and less head stripping, even in high-torque applications
Metal & Wood Penetration Mastery: Specially hardened tip pierces aluminum, steel sheets, and treated lumber without bending. Wide-spaced threads prevent wood splitting while maintaining strong pull-out resistance – a true multi-material solution for fabrication, roofing, and furniture
Description
Industrial-Grade Corrosion Defense: 304 stainless steel self-tapping screws deliver all-environment rust resistance for marine, outdoor, and humid applications. The countersunk head ensures flush surfaces, while precision-cut threads penetrate metal sheets and hardwood without pre-drilling. Engineered with anti-cam-out Phillips drives for reliable installation and bulk-packaged for cost efficiency in transparent, labeled bags
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