S-90273A424 10-32 x 1 3/4" ASME B18.6.3 Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Precise countersinking capability with 82° standard flat head profile for flush, professional installations
• Exceptional tensile strength rated at 60,000 psi for reliable performance in high-stress applications
• Optimized drive engagement with Phillips No. 2 drive style for efficient installation and reduced cam-out
• Consistent thread performance with Class 2A fit and UNF fine threads providing secure, vibration-resistant connections
• Full-length threading ensuring maximum grip and load distribution across the entire fastener length
• Hardened durability with Rockwell B70 hardness maintaining structural integrity under repeated use

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver critical engineering solutions where flush mounting and high-strength fastening are paramount. The zinc-plated steel construction provides essential corrosion protection for industrial equipment, machinery assemblies, and electronic enclosures exposed to harsh conditions. The fine thread spacing and Class 2A thread fit ensure precise engagement in tapped holes, minimizing vibration loosening in dynamic applications. With their 82° countersink angle and fully threaded design, these screws distribute clamp load effectively while maintaining clean, aerodynamic surfaces in automotive, aerospace, and manufacturing applications where protrusion cannot be tolerated.

Specification Summary & Compliance

Manufactured to exact ASME B18.6.3 specifications with Class 2A thread fit tolerances and UNF thread form. These 1 3/4" length screws feature right-hand thread direction and are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The inch system measurements ensure compatibility with North American machinery and equipment standards.