4.2mm x 13mm Wafer Head Self Tapping Screws (50 Pack), Black Phosphate Modified Truss Head, Carbon Steel Fine Thread Phillips/Pozi Drive for Sheet Metal & Plasterboard (0.165" x 0.512")

These Black Phosphate Wafer Head Self-Tapping Screws are designed for fastening drywall track, ceiling track systems, and light gauge metal framing without the need for pre-drilling. Ideal for stitching metal studs and track together, they provide a fast, secure, and professional finish in drywall and construction projects.The wafer (modified truss) head design offers a wide bearing surface that delivers excellent clamping strength while maintaining a low-profile, unobtrusive appearance. This makes them perfect for applications where a larger contact area is required without excessive head height.Manufactured from durable carbon steel with a black phosphate coating, these screws offer improved wear resistance and dependable indoor corrosion protection. The fine thread configuration is engineered for strong engagement in light gauge metal, providing high pull-out resistance and secure holding power.Designed for easy installation, the sharp self-tapping point penetrates metal quickly and efficiently, eliminating the need for pre-drilling in most drywall track and thin metal applications. Compatible with Phillips and Pozi drive systems for reliable torque transfer and reduced cam-out during installation.Common applications include:Drywall track and ceiling track systemsMetal stud framingPlasterboard installationLight gauge sheet metal fasteningWood-to-metal applicationsBuilt for contractors, installers, and serious DIY users, these screws deliver reliable fastening performance for interior construction and remodeling projects.

• WAFER HEAD SCREWS: Carbon steel, Coating - Black Phosphate, Threads - Coarse thread, Tail - Sharp Pointed, Head - Modified Truss, Drive - Phillips PH2.
• USABILITY: Commonly used when constructing drywall track and ceiling, for stitching the track tougher, optimized sharp point geometry (no predrill neded) and Wafer Head designed for applications where a large clamping required. Multipurpose screw used in a variety of applications.
• EASY TO INSTALL: Phillips head screwdriver needed (bit 2PH), no need to predrill. Flat wafer head ensures a strong connection and resistance to head breakage, fine thread gives ultimate performance and high pull-out resistance. Sharp point for easy penetration.
• PHOSPHATE COATING: The black color of carbon Steel screws is a result of phosphate coating, which is used to help prevent rusting. Without the phosphate coating, wet residues from the drywall can cause the screw heads to rust. Screws are mostly used for indoor projects.
• UNIVERSAL SCREW: Used when constructing drywall track, plasterboard, metal sheets, wood. Carbon steel screws perfect for constructions, plasterboard, plaster walls, wood panels, stairs and other indoor applications, patios and various wood joints.