S-91771A967 10-32 x 7/8" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Superior holding power from 80,000 psi tensile strength and Rockwell B80 hardness for reliable fastening under stress
• Precision thread engagement with Class 2A UNF fine threads ensuring secure, vibration-resistant connections
• Full-length threading provides maximum grip along the entire 7/8" length for enhanced load distribution
• Optimized flush mounting with standard 100° countersink angle and flat head design for smooth surface finishes
• Industry-standard compatibility with Phillips No. 2 drive for efficient installation using common tools
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver critical performance advantages for precision assembly applications where material integrity and dimensional accuracy are paramount. The passivated 18-8 stainless steel construction provides superior resistance to oxidation and chemical exposure, making them ideal for electronic enclosures, machinery panels, and automotive components operating in demanding conditions. The fine UNF thread spacing and Class 2A thread fit ensure precise mating with tapped holes, eliminating play while the fully threaded design maximizes shear strength across the entire engagement length. The 100° countersink angle facilitates perfect flush mounting in precision-machined surfaces, while the Phillips No. 2 drive enables efficient installation without specialized tooling requirements.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with Class 2A thread fit tolerances for consistent dimensional accuracy. The UNF (Unified National Fine) 10-32 thread specification ensures compatibility with standard components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming these screws contain no restricted substances. Mechanical properties include 80,000 psi tensile strength and Rockwell B80 hardness for reliable performance in industrial applications.