S-91099A263 8-32 x 7/16" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional tensile strength of 80,000 psi ensures reliable performance under high-stress applications
• Precise flush mounting with undercut flat head profile and 82° countersink angle for seamless surface integration
• Optimized drive engagement through Phillips No. 2 drive design prevents cam-out and enhances installation efficiency
• Consistent thread performance with Class 2A thread fit and UNC coarse threading for secure fastening in various materials
• Full-threaded design maximizes grip length and provides uniform load distribution across the entire fastener
• Rockwell B80 hardness maintains structural integrity and prevents deformation during installation and service

Professional Applications & Engineering Value

This 8-32 UNC flat head screw delivers critical engineering solutions where corrosion resistance and flush surface requirements are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making it ideal for industrial machinery, electronic enclosures, and marine applications. The combination of fully threaded design and coarse thread spacing ensures rapid installation and superior holding power in both metallic and non-metallic substrates. The undercut head profile with 82° countersink angle allows for perfect flush mounting while the Phillips No. 2 drive offers familiar, efficient installation without specialized tools. These features collectively address common industrial challenges including vibration resistance, material compatibility, and long-term reliability in demanding environments.

Specification Summary & Compliance

This flat head machine screw maintains precise Class 2A thread fit tolerances with UNC coarse threading (8-32) and 7/16" length. Manufactured in compliance with ASME B18.6.3 specifications for dimensional accuracy and performance. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations regarding chemical safety, ensuring environmental responsibility and workplace safety standards.