S-91321A122 8-32 x 1/2" MS35190-253, NASM35190 Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with cadmium-plated steel construction for extended service life in demanding environments
• High tensile strength rating of 60,000 PSI ensures reliable performance under significant mechanical stress
• Full threading design provides maximum grip and uniform load distribution along the entire fastener length
• Precise Class 2A thread fit enables smooth installation while maintaining secure fastening integrity
• Standard 82° countersink angle allows for flush mounting in prepared surfaces for clean, professional finishes
• Phillips No. 2 drive compatibility offers widespread tool accessibility and efficient installation
• MS35190-253 specification compliance guarantees consistent quality and reliability for industrial applications

Professional Applications & Engineering Value

This 8-32 UNC flat head screw delivers exceptional engineering value through its cadmium-plated steel composition and optimized mechanical design. The combination of coarse thread configuration and Class 2A thread fit ensures rapid installation while preventing cross-threading in assembly line operations. The fully threaded construction maximizes surface contact area, distributing stress evenly to prevent joint failure in vibration-prone applications. The 82° countersink angle and flat head profile create seamless surface transitions in machinery, electronic enclosures, and structural assemblies where aerodynamic or aesthetic considerations are paramount. Meeting MS35190-253 specifications, these industrial screws provide reliable performance in aerospace, automotive, and heavy equipment applications where fastener integrity is critical to operational safety.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerances per UNC standards with right-hand thread direction and coarse thread spacing. Manufactured to MS35190-253 specifications (equivalent to NASM35190) within the inch system, it features precise dimensional control including 0.164" thread diameter and 1/2" length. The cadmium-plated steel construction complies with industrial corrosion protection requirements while the 82° countersink angle and Phillips No. 2 drive conform to established industrial fastening standards for consistent performance across applications.