S-95893A373 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior plastic retention with TRS thread forming design that creates strong, vibration-resistant threads without chipping or cracking materials
• Maximum torque transfer and strip resistance through the T8 Torx drive system, ensuring secure installation and removal cycles
• Enhanced corrosion protection from the black oxide steel finish, extending service life in various industrial environments
• Reliable thread formation with the Tri-Lobe shank cross-section that displaces material efficiently for consistent fastening performance
• Flush mounting capability with the standard 82° flat head profile that sits cleanly in prepared countersinks
• Simplified installation process using standard No. 37 drill bits (0.104" diameter) for precise hole preparation
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These Black Oxide Steel TRS tapping screws are engineered specifically for plastic fastening applications where material integrity and joint reliability are critical. The thread forming design eliminates the need for tapped threads while the Tri-Lobe shank creates precise, secure threads in plastic substrates without generating chips or stress fractures. The T8 Torx drive provides exceptional torque transmission during installation, reducing cam-out incidents and ensuring consistent seating in 82° countersink preparations. This combination of features makes these No. 4-20 screws ideal for electronics enclosures, automotive plastic components, and industrial assemblies where vibration resistance and material compatibility are essential for long-term performance.

Specification Summary & Compliance

This No. 4-20 x 1/2" TRS tapping screw features inch system measurements with a right-hand thread direction and fully threaded blunt tip design. Manufactured to precise dimensional standards with a 0.112" thread diameter and 20 threads per inch for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards are met for industrial distribution and use.