S-90273A194 8-32 x 1/2" ASME B18.6.3 Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Exceptional holding power from 60,000 psi tensile strength and Rockwell B70 hardness, preventing fastener failure under stress
• Reliable thread engagement through full threading and Class 2A thread fit, ensuring consistent fastening performance
• Streamlined installation with No. 2 Phillips drive and standard 82° countersink angle, enabling flush mounting and reduced assembly time
• Wide compatibility with UNC coarse thread profile and 8-32 size, making them ideal for various inch-system applications
• Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards, reducing compliance risks for your projects
• Optimized for high-volume use with right-hand thread direction and standardized flat head profile, facilitating efficient production line operations

Professional Applications & Engineering Value

These 8-32 UNC flat head Phillips screws deliver critical engineering advantages where flush surface mounting and reliable fastening are paramount. The zinc-plated steel construction provides essential corrosion protection for industrial equipment, electronic enclosures, and machinery assemblies exposed to moderate environmental conditions. The coarse UNC threads and Class 2A thread fit ensure rapid installation with reduced cross-threading risks, while the full threading maximizes grip length for enhanced pull-out resistance. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes these fasteners ideal for applications requiring repeated disassembly and reassembly without thread degradation. The standardized 82° countersink angle and flat head design create seamless surface finishes in metal fabrication, woodworking, and assembly operations where protruding fasteners are unacceptable.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerances and UNC coarse thread profile (8-32 size). These screws conform to ASME B18.6.3 specifications for dimensional accuracy and performance requirements. Regulatory compliance includes RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) for chemical safety. The inch system measurements ensure compatibility with North American machinery and equipment specifications.