S-96001A217 Length 7/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in humid or demanding industrial environments.
• Enhanced torque transmission and reduced cam-out thanks to the Torx Plus IP10 drive, allowing for higher tightening forces and improved assembly efficiency.
• Excellent thread retention in plastic materials due to the TRS thread forming design and Tri-Lobe shank, which displaces material to create strong, vibration-resistant threads without tapping.
• Reduced risk of material cracking or splitting with the blunt tip and controlled thread forming action, ideal for delicate plastic components.
• Secure and flush fastening with the standard pan head profile, providing a low-profile finish and consistent clamping force.
• Full compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in global markets and eco-conscious industries.
• Optimized for use with No. 37 drill bit (0.104" diameter), simplifying installation and ensuring precise hole sizing for reliable performance.

Professional Applications & Engineering Value

This No. 4-20 x 7/8" TRS Torx Plus tapping screw is engineered specifically for plastic fastening applications, where traditional screws may strip threads or cause stress fractures. The 18-8 stainless steel material offers excellent resistance to oxidation and chemicals, extending service life in automotive, electronics, and consumer goods assemblies. The thread forming (TRS) design with a Tri-Lobe shank and blunt tip cold-forms mating threads in plastic, eliminating chips and providing superior pull-out and vibration resistance. Combined with the Torx Plus drive, it ensures high torque capability and reduces tool slippage, speeding up production lines while minimizing rework and component damage in industrial plastic fastening scenarios.

Specification Summary & Compliance

This screw features a No. 4-20 thread size with 20 threads per inch and right-hand direction, fully threaded for consistent engagement. Dimensions include a 7/8" length, 0.219" head diameter, and pan head style. Manufactured to precise standards for thread forming (TRS) tapping screws, it is designed for use with a No. 37 drill bit (0.104" diameter). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety requirements for industrial use.