S-96001A404 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in humid or harsh environments
• Enhanced torque transmission and reduced cam-out thanks to the T10 Torx drive, providing secure installation and minimizing tool slippage
• Secure fastening in plastic materials through the tri-lobe shank design, which forms strong threads without cracking or stripping
• Optimized for plastic applications with thread forming (TRS) technology, creating durable, vibration-resistant connections
• Easy installation alignment with a standard pan head and blunt tip, allowing for straightforward positioning in pre-drilled holes
• Full environmental compliance meeting RoHS 3 and REACH standards, making it safe for regulated industries
• Consistent performance with fully threaded design and right-hand thread direction, ensuring uniform clamping force

Professional Applications & Engineering Value

This No. 4-20 TRS plastic tapping screw is engineered to address common fastening challenges in plastic assemblies, such as material cracking, thread stripping, and corrosion-induced failure. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, extending service life in outdoor or moisture-exposed applications. Its tri-lobe shank cross-section displaces plastic material during installation, forming precise, high-retention threads that resist loosening under vibration—ideal for electronics enclosures, automotive trim, and consumer products. The T10 Torx drive ensures maximum torque transfer, reducing the risk of head damage during high-speed assembly. Pre-drilling with a No. 37 drill bit (0.104" diameter) guarantees optimal hole fit, minimizing stress concentrations. This screw delivers reliable, repeatable performance for plastic fastening where durability and compliance are critical.

Specification Summary & Compliance

This screw adheres to inch system measurements with a thread diameter of 0.112" and approximately 20 threads per inch, ensuring precise fit in standard plastic components. It features a fully threaded, right-hand thread design with Class 2A tolerance for consistent engagement. Manufacturing follows industry standards for thread forming screws (TRS type), with a pan head style and Torx T10 drive. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free of restricted hazardous substances and safe for environmental and workplace use.