S-91515A530 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Enhanced load distribution through the flanged truss head design, reducing material stress and preventing pull-through
• Efficient installation with the integrated drilling tip that eliminates pre-drilling, penetrating up to 1/4" steel and sheet metal
• Maximum torque transfer via the Phillips No. 3 drive, minimizing cam-out and ensuring secure fastening
• Strong, permanent threads created by the thread forming tapping method, providing excellent vibration resistance
• Full thread engagement along the 2-1/2" length for maximum holding power in various material thicknesses
• Environmental compliance with RoHS 3 standards, ensuring safe use across regulated industries

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional performance in demanding steel and sheet metal applications. The combination of thread forming technology and integrated drilling tip eliminates the need for separate drilling and tapping operations, significantly reducing assembly time and labor costs. The flanged truss head provides a wider bearing surface that distributes clamping force effectively, preventing damage to thin materials while maintaining secure fastening under vibration. With their BSD tapping screw design and fully threaded construction, these industrial screws create strong, permanent threads in parent material, offering reliable performance in HVAC systems, electrical enclosures, and metal fabrication where vibration resistance and corrosion protection are critical.

Specification Summary & Compliance

This 1/4"-14 x 2-1/2" tapping screw features standard right-hand threads with approximately 14 threads per inch and a 0.25" thread diameter. Manufactured to BSD tapping screw specifications with thread forming method for creating strong internal threads in ductile materials. The product is fully RoHS 3 (2015/863/EU) Compliant, meeting environmental regulations for hazardous substance restrictions in industrial applications.