S-91099A473 10-32 x 7/8" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• High-strength performance with 80,000 psi tensile strength and Rockwell B80 hardness, providing exceptional load-bearing capacity for demanding applications
• Precision thread engagement through Class 2A thread fit and 10-32 UNF fine threading, delivering secure fastening with minimal vibration loosening
• Optimized flush mounting with 82° countersink angle and undercut flat head design, creating seamless surface finishes while maximizing grip strength
• Enhanced drive efficiency via Phillips No. 2 drive system, enabling rapid installation with standard tools while resisting cam-out
• Full-thread engagement along the entire 7/8" length, ensuring maximum thread contact and uniform stress distribution
• Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards, guaranteeing quality and environmental responsibility

Professional Applications & Engineering Value

These 10-32 UNF flat head screws deliver critical engineering solutions where corrosion resistance and precision fit are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against chemical exposure and atmospheric corrosion, making these industrial fasteners ideal for marine equipment, food processing machinery, and outdoor applications. The combination of fine thread spacing and Class 2A thread fit ensures vibration-resistant connections in precision assemblies, while the 82° countersink angle and undercut flat head profile enable flush mounting in critical clearance applications. These fully threaded screws with right-hand threading provide maximum engagement depth for structural integrity in thin materials and tight-tolerance assemblies.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit tolerance for precision engagement. The UNF thread form with fine thread spacing ensures optimal performance in precision applications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, confirming these components are free from restricted substances. Mechanical properties include 80,000 psi tensile strength and Rockwell B80 hardness for reliable performance in demanding industrial environments.