S-91099A367 10-32 x 1" 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 mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Precision flush mounting achieved through undercut flat head profile and 82° countersink angle for seamless surface integration
• Secure fastening engagement with Class 2A thread fit and UNF fine threading providing vibration-resistant connections
• Industry-standard compliance meeting ASME B18.6.3 specifications for dimensional accuracy and performance reliability
• Environmental regulation adherence with RoHS 3 and REACH compliance for safe, sustainable manufacturing
• Optimized installation efficiency featuring Phillips No. 2 drive for straightforward assembly and disassembly

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver critical engineering solutions where surface-flush fastening and corrosion resistance are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure in demanding environments including marine applications, food processing equipment, and outdoor machinery. The precision undercut flat head profile with 82° countersink angle eliminates protrusion issues while maintaining structural integrity under vibration and thermal cycling. The UNF fine threading and Class 2A fit ensure consistent clamping force distribution across the full 1" length, preventing loosening in dynamic load conditions. These fully threaded fasteners are engineered for applications requiring reliable, permanent fastening where disassembly is infrequent but installation precision is critical.

Specification Summary & Compliance

Manufactured to exact ASME B18.6.3 standards with Class 2A thread fit tolerances ensuring dimensional precision and interchangeability. The UNF (Unified National Fine) thread system with right-hand direction provides standardized compatibility across industrial applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmentally responsible manufacturing and material safety. Mechanical properties include 80,000 psi tensile strength and Rockwell B80 hardness, validated through rigorous quality control processes.