S-90190A194 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in industrial environments
• Efficient thread forming technology creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time
• Optimized Phillips drive design provides excellent torque transmission and prevents cam-out during high-speed assembly
• Fully threaded shank delivers maximum grip length and uniform stress distribution for enhanced load-bearing capacity
• Precision-engineered pan head offers low-profile seating and improved surface contact for secure fastening
• Right-hand threading ensures standard compatibility with automated assembly systems and manual tools
• Comprehensive compliance with RoHS 3 and REACH regulations guarantees environmental safety and global market acceptance

Professional Applications & Engineering Value

These No. 8 x 1/2" zinc-plated steel tapping screws are specifically engineered for demanding sheet metal applications where vibration resistance and pull-out strength are critical. The thread forming A/AB type design displaces material rather than removing it, creating zero-clearance threads that significantly improve fatigue life and prevent loosening under dynamic loads. The Phillips pan head configuration combines easy installation with a low-profile finish, ideal for applications where clearance is limited. Manufactured from zinc-plated steel, these screws provide excellent corrosion protection while maintaining the mechanical strength required for industrial fastening in HVAC systems, electrical enclosures, and metal fabrication projects. The combination of fully threaded design and pointed tip ensures quick starting and smooth penetration through pre-drilled holes sized for No. 29 drill bits.

Specification Summary & Compliance

This thread forming sheet metal screw features precise Class 2A thread tolerances with a thread diameter of 0.164" and approximately 15 threads per inch. The Phillips drive (No. 2 size) and pan head design (0.322" diameter, 0.115" height) conform to industry standards for reliable driving performance. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. The screw is optimized for use with No. 29 drill bits (0.136" diameter) in materials up to 0.025" thickness, providing engineers with precise installation specifications for sheet metal fastening applications.