S-95893A388 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black Oxide Steel finish for extended service life in demanding industrial environments
• Enhanced torque transmission through T8 Torx drive design, minimizing cam-out and tool slippage during installation
• Exceptional holding power in plastic materials with TRS thread forming technology that creates strong, permanent threads
• Reduced installation stress thanks to the tri-lobe shank design that displaces material efficiently without cracking plastic substrates
• Flush mounting capability with standard 82° countersink angle and flat head profile for clean, professional finishes
• Full-length fastening security through completely threaded construction for maximum grip along the entire engagement length
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

Engineered specifically for plastic fastening applications, this Black Oxide Steel TRS tapping screw solves critical assembly challenges in automotive, electronics, and consumer goods manufacturing. The thread forming design with tri-lobe shank cross-section creates precise, high-strength threads in plastic substrates without generating chips or debris that could compromise electrical components or moving parts. The T8 Torx drive system ensures reliable installation with reduced operator fatigue, while the 82° countersink angle provides seamless integration with standard plastic components. This fully threaded construction delivers uniform stress distribution, preventing material fatigue and ensuring long-term reliability in vibration-prone environments where plastic fasteners typically fail.

Specification Summary & Compliance

This precision No. 4 x 3/8" TRS tapping screw features right-hand threads with approximately 20 threads per inch and blunt tip design for controlled penetration. Manufactured to exacting dimensional standards with Class 2A thread tolerances for consistent performance. The screw is designed for use with No. 37 drill bit (0.104" diameter) and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring strict chemical substance control.