S-91858A851 10-32 x 5/8" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction and passivated finish for reliable performance in harsh environments
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B80 hardness for demanding applications
• Precision thread engagement with Class 2A fit and UNF fine threads ensuring secure, vibration-resistant connections
• Optimized flush mounting featuring standard 82° countersink angle and flat head design for seamless surface integration
• Full threading capability providing consistent grip along the entire 5/8" length for maximum holding power
• Industry-standard compliance meeting ASME B18.6.3 specifications for guaranteed dimensional accuracy and performance
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing practices

Professional Applications & Engineering Value

These 10-32 UNF flat head screws in 316 Stainless Steel with passivated finish address critical engineering challenges in corrosive environments. The combination of premium material and surface treatment provides exceptional resistance to chemicals, saltwater, and industrial atmospheres, making them ideal for marine equipment, chemical processing plants, and food-grade applications. The Class 2A thread fit and UNF fine threading ensure precise, vibration-resistant assemblies in machinery, electronic enclosures, and precision instruments. The 82° countersink angle and slotted drive design facilitate flush mounting in confined spaces while maintaining structural integrity under the rated 70,000 psi tensile strength. These fully threaded fasteners deliver consistent clamping force across the entire engagement length, preventing loosening in high-stress applications.

Specification Summary & Compliance

This 5/8" flat head screw features precision 10-32 UNF threads with Class 2A fit and fine thread spacing manufactured to exacting dimensional standards. The product fully complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, ensuring adherence to the latest regulatory requirements for hazardous substance restrictions.