S-90198A059 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and outdoor applications.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing assembly time and tooling.
• Precise 82° flat head with standard profile ensures a flush, clean finish when countersunk, improving aesthetics and safety.
• Full threading along the 1/2" length provides maximum grip and holding power across the entire fastened material thickness.
• Compatibility with standard No. 48 drill bits (0.076" diameter) simplifies hole preparation and ensures a proper fit for reliable performance.
• Fine 32 TPI right-hand thread offers excellent engagement in thin materials like sheet metal, minimizing strip-out risk.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and suitability for global industrial supply chains.

Professional Applications & Engineering Value

These 316 stainless steel Phillips flat head tapping screws are engineered to address common challenges in sheet metal assembly, such as corrosion from moisture, chemicals, or salt spray. The thread forming (Type A/AB) design displaces material rather than cutting it, creating stronger threads with higher resistance to vibration loosening and pull-out forces. This is critical in thin-gauge applications where thread integrity is paramount. The fully threaded No. 2 screw with a pointed tip ensures easy starting and consistent engagement, while the flat head with an 82° countersink sits flush to prevent snagging and provide a smooth surface. Ideal for HVAC, electronics enclosures, and automotive panels, these screws deliver long-term reliability and reduce maintenance needs in demanding industrial fastener applications.

Specification Summary & Compliance

This No. 2 size screw features a right-hand thread with a diameter of 0.086" and approximately 32 threads per inch, adhering to standard inch-series tolerances for thread forming screws. The flat head has a diameter of 0.162" and height of 0.051", designed with a standard profile and 82° countersink angle. It is manufactured from 316 stainless steel and is fully threaded over its 1/2" length. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and health safety standards for industrial use.