S-90065A057 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Efficient thread forming design (AB type) creates strong, permanent threads in sheet metal without pre-tapping, reducing assembly time and labor costs.
• Precise 82° countersink angle allows for flush mounting in sheet metal applications, providing a clean finish and preventing snagging.
• Optimized for thin materials with maximum drilling thickness of 0.025", ideal for precision sheet metal assemblies and electronic enclosures.
• High thread density (42 threads per inch) delivers superior holding power and vibration resistance in metal-to-metal connections.
• RoHS 3 compliance ensures environmental safety and regulatory acceptance for global industrial applications.
• No. 0 Phillips drive provides secure tool engagement and reduces cam-out risk during high-torque installation.

Professional Applications & Engineering Value

These 18-8 stainless steel tapping screws are engineered specifically for sheet metal applications where corrosion resistance and installation efficiency are critical. The thread forming technology (AB type) eliminates the need for separate tapping operations by cold-forming precise mating threads in ductile metals, preventing material fatigue and thread stripping. The flat head design with standard profile and 82° countersink angle ensures seamless integration into metal surfaces, maintaining aerodynamic profiles in HVAC systems and electrical enclosures. With full threading and pointed tip, these screws provide immediate engagement and consistent clamping force across the entire 1/2" length, making them ideal for automated assembly lines in automotive, aerospace, and electronics manufacturing where repeatable performance is essential.

Specification Summary & Compliance

These tapping screws feature inch system measurements with No. 1 screw size, 0.073" thread diameter, and Class 2A thread tolerances for consistent fit. Manufactured to industry standards for AB type thread forming screws with right-hand threading and fully threaded shank. Compliant with RoHS 3 (2015/863/EU) regulations, containing no restricted hazardous substances. Designed for use with No. 52 drill bit (0.0635" diameter) for optimal performance in sheet metal applications up to 0.025" thickness.