S-92400A120 Length 5/16" Tapping Screws

Key Features & Benefits at a Glance

• Superior plastic retention with tri-lobe shank design that creates secure, vibration-resistant threads without pre-tapping
• Enhanced corrosion resistance through zinc-plated steel construction for extended service life in industrial environments
• High-torque installation capability with external hex drive design allowing for secure driver engagement and efficient assembly
• Optimal material displacement through thread forming technology that minimizes stress cracking in plastic components
• Full-length threading providing maximum holding power across the entire 5/16" length for reliable fastening
• Precision 20 TPI thread pitch ensuring consistent engagement and reduced installation effort in plastic assemblies
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These No. 4 TRS thread forming screws are specifically engineered to address common challenges in plastic fastening applications where material integrity and joint reliability are critical. The tri-lobe shank design displaces plastic material during installation, creating strong, permanent threads without generating chips that could compromise electronic components or sensitive assemblies. Made from zinc-plated steel, these screws provide excellent corrosion protection while maintaining the structural strength needed for demanding industrial environments. The external hex drive ensures positive driver engagement, preventing cam-out during high-torque installations. Perfect for plastic assembly in automotive trim, electrical enclosures, and consumer products, these screws eliminate the need for threaded inserts while providing superior pull-out resistance.

Specification Summary & Compliance

These thread forming tapping screws feature precise 20 TPI threading with a 0.112" thread diameter and 5/16" length, designed for use with No. 44 drill bits (0.086" diameter). The TRS (Thread Rolling Screw) design follows industry-standard thread forming principles with tri-lobe shank cross-section for optimal performance in plastic materials. Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental responsibility and regulatory acceptance for global industrial applications.