S-99461A215 Length 5/16" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in various environments.
• Excellent thread-forming capability with tri-lobe shank design, providing secure, vibration-resistant fastening in plastic materials without pre-drilled threads.
• Enhanced drive stability from the Phillips pan head, allowing for efficient installation and reduced cam-out during assembly.
• Optimal grip and holding power due to the fully threaded, 14 TPI design, maximizing pull-out strength in plastic assemblies.
• Wide compatibility with standard No. 21 drill bits (0.159" diameter), simplifying hole preparation and speeding up production processes.
• Environmental and regulatory compliance with RoHS 3 and REACH standards, making them safe for use in regulated industries and global markets.
• Durable, rounded pan head profile that sits flush against surfaces, offering a clean finish and reducing snagging in assembled products.

Professional Applications & Engineering Value

This No. 10-14 TRS thread forming screw is expertly engineered for plastic fastening applications, where traditional screws may strip or loosen over time. The tri-lobe shank cross-section and thread forming tapping method displace plastic material to create strong, permanent threads, eliminating the need for inserts and reducing assembly steps. Made from 18-8 stainless steel, it resists rust and corrosion, making it ideal for electronics, automotive components, and outdoor equipment exposed to moisture. The Phillips drive and blunt tip ensure precise placement and minimize material stress, enhancing joint integrity in brittle or soft plastics. By integrating these features, this screw delivers reliable performance, lowers maintenance costs, and supports efficient high-volume production lines.

Specification Summary & Compliance

This screw adheres to standard inch measurements with a thread diameter of 0.19" and length of 5/16", featuring a fully threaded, right-hand design with approximately 14 threads per inch for consistent engagement. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The TRS (Thread Rolling Screw) type and tri-lobe shank are manufactured to precise tolerances, supporting reliable performance in plastic assemblies without additional locking mechanisms.