S-91771A835 10-32 x 1 1/4" 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
• Precise thread engagement with Class 2A UNF fine threads ensuring secure fastening and vibration resistance
• Optimized flush mounting with standard 82° countersink angle and flat head design for smooth surface finishes
• Efficient installation with No. 2 Phillips drive providing positive torque transfer and reduced cam-out risk
• Full-threaded design offering maximum grip length and uniform stress distribution along the entire fastener
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and international environmental standards

Professional Applications & Engineering Value

These 10-32 UNF flat head Phillips screws deliver critical performance advantages in precision assembly applications where surface flushness and corrosion resistance are paramount. The passivated 18-8 stainless steel construction provides excellent protection against oxidation and chemical exposure, making them ideal for industrial equipment, machinery panels, and electronic enclosures operating in demanding environments. The UNF fine thread configuration ensures superior vibration resistance compared to coarse threads, while the Class 2A thread fit guarantees consistent engagement without binding. The combination of 80,000 psi tensile strength and full threading distributes clamping forces evenly, preventing joint relaxation in high-vibration applications. These flat head screws solve common engineering challenges by providing reliable fastening solutions that maintain integrity under mechanical stress and environmental exposure.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerance for consistent performance. Thread specification conforms to UNF (Unified National Fine) standard with 10-32 thread size and right-hand orientation. Complies with ASME B18.6.3 mechanical and dimensional requirements. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards for restricted substances. Features standard 82° countersink angle and fully threaded design per industrial specifications.