S-93878A191 8-32 x 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments.
• Efficient thread forming design creates strong, secure threads in materials like steel and aluminum without pre-tapping, reducing installation time and tooling costs.
• Optimized torque transmission via Phillips No. 2 drive and standard pan head, minimizing cam-out and enabling reliable fastening in high-vibration applications.
• Versatile material compatibility for use in steel, aluminum, brass, cast iron, and sheet metal, providing flexibility across various industrial assemblies.
• Full threading with UNC coarse spacing ensures maximum grip and pull-out resistance, enhancing joint integrity in coarse-grained materials.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets global supply chain requirements for hazardous substance restrictions.
• Precise dimensional consistency with standardized 8-32 UNC thread and 1/4" length, ensuring reliable fit and interchangeability in mass production settings.

Professional Applications & Engineering Value

These 8-32 UNC zinc-plated steel tapping screws are engineered to address common challenges in metal fabrication and assembly, such as strip-out and corrosion-induced failure. The thread forming (SW type) design displaces material to create permanent, high-strength threads without generating chips, making them ideal for steel, aluminum, and sheet metal applications where debris contamination is a concern. The zinc plating provides a sacrificial layer that resists rust, extending service life in humid or outdoor conditions. Combined with a Phillips No. 2 drive and standard pan head, these screws deliver consistent clamping force and ease of installation in automated or manual processes, reducing assembly errors and improving throughput in industrial fastener systems.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with a size of 8-32 and full threading for uniform load distribution. Dimensions include a 1/4" length, 0.322" head diameter, and Phillips No. 2 drive compatible with common industrial drivers. Manufactured from zinc-plated steel, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring adherence to strict environmental and safety regulations for industrial components.