S-99961A210 6-32 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding environments
• Reliable reverse-thread security with left-hand threading, preventing loosening in counter-rotating applications
• Optimized torque transmission through standard external hex drive design, ensuring secure installation with common tools
• Consistent thread engagement with Class 2B thread fit, maintaining vibration resistance and assembly integrity
• Enhanced durability with Grade 2 strength rating, providing dependable performance for general industrial use
• Quick installation advantage with coarse UNC threading, reducing assembly time in production environments
• Regulatory compliance assurance meeting RoHS 3 and REACH standards, ensuring environmental and safety requirements

Professional Applications & Engineering Value

This 6-32 UNC left-hand thread hex nut delivers critical engineering solutions where standard right-hand threads would compromise safety. The zinc-plated steel construction provides essential corrosion protection for industrial equipment exposed to moisture or chemicals, while the coarse thread spacing ensures rapid assembly in high-volume manufacturing settings. The left-hand threading is specifically engineered for applications involving counter-clockwise rotating components, preventing accidental disengagement in machinery, conveyor systems, and specialized equipment. With its standard hex nut profile and external hex drive, maintenance teams can achieve proper torque values using conventional tools, reducing installation errors and improving workplace efficiency across multiple industrial sectors.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2B thread fit tolerance for consistent performance. Thread specifications conform to UNC coarse thread standards with 6-32 sizing in the inch measurement system. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance. The nut features standard dimensions of 5/16" width and 7/64" height, manufactured to industrial fastener specifications for reliable integration with matching components.