S-99512A637 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transfer with T15 Torx drive design, preventing cam-out and ensuring secure installation in plastic assemblies
• Enhanced corrosion resistance through zinc-plated steel construction, extending service life in various industrial environments
• Exceptional holding power achieved through tri-lobe shank design that creates strong, permanent threads in plastic materials
• Reduced installation stress with thread-forming TRS technology that displaces material without cutting, minimizing cracking in plastic components
• Optimized plastic fastening with No. 6 diameter and 19 threads per inch specifically engineered for plastic assembly applications
• Secure seating and consistent clamping force provided by pan head design with 0.27" diameter for reliable surface contact
• Full-length thread engagement across the 2-1/2" length ensures maximum holding strength throughout the fastened joint

Professional Applications & Engineering Value

These No. 6 x 2-1/2" T15 Torx zinc-plated steel tapping screws are specifically engineered to address common challenges in plastic fastening applications. The thread-forming TRS design with tri-lobe shank cross-section creates strong, reliable threads in plastic materials without generating chips or debris that could compromise electronic components or moving parts. This makes them ideal for plastic assembly in electronics enclosures, automotive trim components, and industrial equipment housings where vibration resistance and long-term reliability are critical. The zinc-plated steel construction provides essential corrosion protection while maintaining the strength needed for demanding applications. The T15 Torx drive system ensures maximum torque transfer during installation, reducing the risk of stripped drive heads and failed installations that can occur with traditional Phillips drives in production environments.

Specification Summary & Compliance

These tapping screws feature a No. 6 thread diameter (0.138") with 19 threads per inch and full threading along the 2-1/2" length. The thread-forming TRS design incorporates a tri-lobe shank cross-section for optimal performance in plastic materials. Manufactured to precise dimensional standards with a standard pan head profile (0.27" diameter, 0.097" height) and T15 Torx drive compatibility. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial and consumer applications.