S-91515A810 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Enhanced fastening stability through wide truss head design that distributes load over a larger surface area
• Efficient installation with integrated drilling tip that eliminates pre-drilling requirements in steel and sheet metal up to 0.21" thickness
• Reliable thread formation with BSD thread forming technology that creates strong, permanent threads in base materials
• Secure torque transmission via No. 2 Phillips drive that prevents cam-out during high-torque applications
• Maximum grip strength from fully threaded 14 TPI design ensuring consistent holding power along the entire fastener length
• Regulatory compliance assurance with RoHS 3 certification for safe use in regulated industrial applications

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional engineering value in steel and sheet metal fabrication where vibration resistance and structural integrity are paramount. The thread forming BSD design creates precise, durable threads without chip removal, eliminating contamination risks in sensitive assemblies. The combination of No. 3 drill tip and flanged truss head provides a complete fastening solution that reduces installation time by up to 40% compared to traditional drilling and tapping methods. Engineered for right-hand thread applications requiring consistent clamp load, these screws maintain tension under dynamic loads, making them ideal for HVAC systems, electrical enclosures, and automotive components where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.216" thread diameter and 1-1/4" length, these tapping screws feature 14 TPI thread pitch with fully threaded configuration for maximum engagement. The BSD thread forming technology ensures consistent performance across multiple installations. Compliant with RoHS 3 (2015/863/EU) environmental regulations, these screws meet industrial safety standards while delivering reliable performance in commercial and industrial fastening applications requiring No. 12 screw size specifications.