S-94831A631 3/8"-24 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through serrated locking technology that bites into mating surfaces to prevent loosening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in harsh industrial environments
• Efficient installation with external hex drive design allowing for standard wrench access and quick assembly
• Reliable thread engagement with Class 2B fine thread fit ensuring precise mating and consistent clamping force
• Integrated flange design eliminates need for separate washers while providing 3/4" diameter bearing surface for superior load distribution
• Environmental compliance meeting both RoHS 3 and REACH standards for safe use in regulated applications
• Optimized for UNF fine threads with 3/8"-24 specification delivering higher tensile strength compared to coarse thread alternatives

Professional Applications & Engineering Value

This zinc-plated steel flange lock nut addresses critical challenges in industrial assembly where vibration-induced loosening compromises equipment reliability. The serrated locking mechanism creates permanent resistance to rotational forces, making it ideal for automotive components, machinery frames, and electrical enclosures subject to constant motion. The 3/4" flange diameter distributes clamping pressure across wider surface areas, preventing damage to softer materials while the UNF fine thread configuration maintains superior tensile strength in high-stress applications. Engineered with Class 2B thread fit, this nut ensures consistent performance in automated assembly lines while the zinc plating provides essential corrosion protection for outdoor or chemically exposed environments.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2B thread fit tolerance for optimal engagement with mating UNF threads. Features 3/8"-24 UNF fine thread specification with right-hand orientation and external hex drive compatibility. The 3/4" flange diameter with 0.1" thickness provides structural stability while serrated locking design meets industrial vibration resistance requirements. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for hazardous substance restrictions.