S-90065A121 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and long-term durability.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and tooling costs.
• Reliable Phillips drive and flat head ensures secure, flush mounting with standard tools, preventing protrusions in assembled components.
• Full threading along the 1/2" length provides maximum grip and holding power in thin sheet metal applications up to 0.025" thickness.
• Precision 82° countersink angle allows for seamless, vibration-resistant seating in prepared holes, enhancing structural integrity.
• Compliance with RoHS 3 and REACH regulations ensures safe, environmentally responsible use in global industrial supply chains.
• Optimized No. 36 drill bit compatibility (0.1065" diameter) simplifies hole preparation, ensuring consistent performance and reduced assembly errors.

Professional Applications & Engineering Value

These No. 5-20 thread forming screws are engineered to address common challenges in sheet metal fabrication, such as material fatigue and loosening under vibration. The 18-8 stainless steel offers excellent strength and corrosion resistance, while the flat head design with an 82° countersink ensures a smooth, flush finish that minimizes snagging and improves aesthetics. The thread forming tapping method displaces material to create robust, load-bearing threads without chips, reducing the risk of failure in thin-gauge metals. Ideal for HVAC systems, electronic enclosures, and automotive panels, these Phillips drive screws provide reliable fastening in high-stress environments, enhancing assembly efficiency and product longevity.

Specification Summary & Compliance

This tapping screw adheres to standard inch measurements with a No. 5-20 thread (0.125" diameter, 20 TPI) and fully threaded 1/2" length for consistent engagement. It meets industry tolerances for Class 2A thread fit and is designed for use with a No. 36 drill bit (0.1065" diameter). The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and suitable for environmentally conscious industrial applications.