S-95621A900 7/8"-20 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments
• Precise thread engagement with Class 2B thread fit for secure fastening and vibration resistance in critical assemblies
• Space-saving thin profile (31/64" height) ideal for applications with limited clearance while maintaining full strength
• Enhanced thread contact through UNEF extra fine threading provides superior load distribution and reduced loosening risk
• Optimized torque transmission with external hex drive design for efficient installation using standard tools
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use across global markets
• Right-hand thread compatibility with standard inch-system components for seamless integration into existing assemblies

Professional Applications & Engineering Value

This 7/8"-20 UNEF thin hex nut delivers exceptional engineering value in precision applications where space constraints and corrosion resistance are critical. The 18-8 stainless steel construction provides excellent durability against chemical exposure and atmospheric corrosion, making it ideal for marine, chemical processing, and outdoor equipment applications. The extra fine thread spacing offers superior vibration resistance compared to standard threads, preventing loosening in high-stress environments. With its Class 2B thread fit, this nut ensures consistent engagement with mating components while the thin profile maintains structural integrity in compact assemblies. The combination of external hex drive and inch-system compatibility allows for straightforward installation across various industrial equipment and machinery maintenance scenarios.

Specification Summary & Compliance

This precision fastener features 7/8"-20 UNEF extra fine threading with Class 2B thread fit per ASME/ANSI standards, ensuring dimensional accuracy and reliable performance. The nut measures 1 5/16" across flats with a height of 31/64", maintaining tight manufacturing tolerances throughout. Manufactured from 18-8 stainless steel with right-hand thread direction, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.