S-95893A371 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in industrial environments
• Enhanced torque transmission from T8 Torx drive design, reducing cam-out and tool slippage during installation
• Reliable thread-forming performance with tri-lobe shank design, creating strong, vibration-resistant threads in plastic materials
• Flush mounting capability with standard 82° flat head profile, providing clean finished appearances
• Optimized plastic fastening through right-hand TRS thread forming design, minimizing material stress and cracking
• Full 1-inch threading coverage ensuring maximum grip length and holding power in plastic assemblies
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These No. 4 TRS tapping screws are specifically engineered for plastic fastening applications where material integrity is critical. The zinc-plated steel construction provides essential corrosion protection while the tri-lobe shank cross-section displaces plastic material during installation, creating permanent, high-retention threads without requiring pre-tapped holes. The T8 Torx drive system delivers superior torque transfer compared to traditional drive types, preventing stripping and ensuring consistent seating force. With their 82° countersink angle and flat head design, these screws sit flush with surfaces, making them ideal for electronics enclosures, automotive trim components, and consumer products where both aesthetic finish and structural reliability matter. The thread forming action eliminates chips and debris, maintaining clean assembly environments.

Specification Summary & Compliance

These inch-system fasteners feature No. 4 screw size with 0.112" thread diameter and 20 TPI thread pitch, designed as TRS (Thread Rolling Screws) for plastic materials. The fully threaded 1-inch length provides complete engagement, while the standard flat head profile with 82° countersink angle ensures proper seating. Manufactured to industry standards for thread forming screws, these components are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial use.