S-91781A826 10-32 x 5/16" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term fastening
• Precision thread engagement with Class 2A fit and UNF fine threads ensuring secure, vibration-resistant connections
• Optimized flush mounting featuring undercut flat head profile and 82° countersink angle for seamless surface integration
• Full thread coverage along the 5/16" length provides maximum grip and load distribution in assemblies
• Broad compliance coverage meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
• Easy installation and removal with standard slotted drive design for straightforward maintenance operations

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver critical performance advantages in demanding industrial applications where corrosion resistance and mechanical reliability are paramount. The combination of 18-8 stainless steel material with passivated finish provides exceptional protection against chemical exposure and environmental degradation, while the fully threaded design ensures maximum engagement strength across the entire fastener length. The undercut flat head profile with 82° countersink angle enables perfect flush mounting in precision assemblies, eliminating protrusion issues in machinery, electronic enclosures, and structural components. Engineered to ASME B18.6.3 standards with Class 2A thread fit, these screws maintain dimensional consistency for repeatable installation torque and clamping force in automated production environments.

Specification Summary & Compliance

This flat head screw features precision 10-32 UNF threads with Class 2A fit and fine thread spacing manufactured to exacting dimensional tolerances. The fastener complies with ASME B18.6.3 mechanical and dimensional specifications, ensuring interchangeability and performance reliability. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making these screws suitable for global industrial applications with strict substance restrictions.