S-98248A250 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated drilling tip that penetrates up to 0.098" aluminum thickness
• Superior thread retention in aluminum through thread forming technology that creates stronger, vibration-resistant connections
• Enhanced installation efficiency with external hex drive design allowing high-torque application with standard tools
• Increased load distribution from the flanged design that provides wider bearing surface and prevents pull-through
• Exceptional strength-to-weight ratio thanks to premium 7075 aluminum construction for demanding applications
• Reliable performance in aluminum assemblies with fully threaded shank ensuring maximum engagement along the entire length
• Simplified inventory management with standardized No. 8-18 thread specifications compatible with industry requirements

Professional Applications & Engineering Value

These 7075 aluminum tapping screws with thread forming technology solve critical challenges in aluminum fabrication and assembly. The combination of high-strength 7075 aluminum and BSD thread forming design creates permanent, vibration-resistant threads in aluminum substrates without tapping operations. The integrated drilling tip (No. 2 type) eliminates secondary drilling processes, significantly reducing installation time and labor costs in aluminum sheet metal, enclosures, and structural components. The flanged hex head design provides exceptional clamp load distribution while the external hex drive ensures reliable high-torque installation without cam-out issues. These thread forming screws are engineered specifically for aluminum-to-aluminum applications where material galling and corrosion compatibility are critical concerns.

Specification Summary & Compliance

This No. 8-18 x 3/4" flanged hex head tapping screw features precise 0.164" thread diameter with 18 TPI right-hand threads and fully threaded configuration. Manufactured to BSD tapping screw standards with thread forming methodology for aluminum applications. The screw maintains dimensional accuracy with 1/4" hex head width and 0.348" flange diameter for consistent performance. Constructed from 7075 aluminum alloy meeting industry material specifications for high-strength applications. Compatible with standard Class 2A thread requirements and manufactured under quality systems ensuring consistent performance in industrial fastening applications.