S-93882A227 1/4"-20 x 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Eliminates pre-tapping requirements through thread forming technology, reducing installation time and labor costs
• Enhanced load distribution with integrated 0.52" flange design that prevents pull-through in thin materials
• High-torque capability with external hex drive head design for secure fastening in high-vibration applications
• Reliable thread engagement with UNC coarse thread profile ensuring strong holding power in various metals
• Versatile material compatibility engineered for steel, aluminum, brass, cast iron, and sheet metal applications
• Full-length threading provides maximum thread contact for superior fastening strength throughout the entire length

Professional Applications & Engineering Value

These zinc-plated steel flanged hex tapping screws deliver exceptional engineering value by solving critical fastening challenges in metal fabrication and assembly operations. The thread forming technology creates precise mating threads in parent materials without generating chips, eliminating the need for pre-tapped holes and reducing installation complexity. The UNC coarse thread profile combined with the external hex drive ensures reliable performance in high-vibration environments common in automotive, machinery, and structural applications. The integrated flange provides superior bearing surface distribution, preventing material distortion in thin-gauge sheet metal, aluminum components, and cast iron assemblies. This comprehensive design approach addresses common industry pain points including installation efficiency, vibration resistance, and material compatibility across diverse metal substrates.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 1/4"-20 UNC coarse thread specification and Class 2A thread tolerance for consistent performance. These thread forming screws feature a 1" length with 0.25" thread diameter and are designed for use with No. 2 drill bit (0.221" diameter). The zinc-plated steel construction provides corrosion protection while maintaining compliance with industry standards for metal fastening applications. The fully threaded design and right-hand thread direction ensure compatibility with standard installation practices across industrial sectors.