S-91515A040 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Superior material penetration through self-drilling tip design that eliminates pre-drilling requirements in steel and sheet metal up to 0.11" thickness
• Increased clamping force distribution with flanged truss head design that provides wider bearing surface and prevents pull-through
• Optimized drive efficiency with Phillips No. 2 drive that ensures secure tool engagement and reduces cam-out during installation
• Reliable thread formation through BSD thread forming technology that creates strong, permanent threads in parent material
• Full-length fastening capability with completely threaded 1/2" length for maximum grip range and holding power
• Regulatory compliance assurance meeting RoHS 3 standards for environmentally responsible manufacturing and workplace safety

Professional Applications & Engineering Value

These No. 12 zinc-plated steel tapping screws deliver exceptional engineering value in steel and sheet metal applications where speed and reliability are critical. The self-drilling tip eliminates secondary drilling operations, significantly reducing installation time and labor costs in assembly lines. The thread forming design creates precise, cold-formed threads that resist vibration loosening while maintaining material integrity. The flanged truss head provides superior load distribution, preventing surface damage in thin-gauge materials. With zinc-plated corrosion protection, these industrial fasteners maintain performance in challenging environments, making them ideal for HVAC systems, electrical enclosures, and metal fabrication projects requiring RoHS compliant solutions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.216" thread diameter and 14 TPI right-hand threads in thread forming (BSD) configuration. Features fully threaded 1/2" length with No. 2 Phillips drive and flanged truss head design (0.452" flange diameter). The self-drilling tip (No. 2 type) penetrates materials up to 0.11" maximum thickness. Compliant with RoHS 3 (2015/863/EU) environmental regulations for industrial safety and restricted substance control.