S-90631A119 M16 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking technology that maintains secure fastening in high-motion environments
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding industrial conditions
• Reliable high-temperature performance with nylon insert rated for continuous operation up to 220°F (104°C)
• Precision thread engagement with Class 6H thread fit ensuring consistent torque values and proper seating
• Quick installation and removal using standard 24mm wrench size with familiar external hex drive design
• Optimal load distribution through standard hex nut profile that prevents rounding and provides stable bearing surface
• Environmental compliance assurance meeting both RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This M16x2mm nylon insert locknut delivers critical vibration-resistant performance for machinery, automotive, and heavy equipment applications where constant motion threatens fastener integrity. The zinc-plated steel construction provides essential corrosion protection in industrial environments, while the nylon insert locking mechanism creates consistent friction that prevents loosening without damaging mating threads. Engineered with Class 6H precision thread fit, this metric coarse thread locknut ensures reliable engagement and proper clamp load maintenance. The external hex drive style allows for efficient installation using standard tools, making it ideal for production lines and maintenance applications requiring repeated assembly and disassembly. With its 220°F temperature rating, this industrial locknut performs reliably in engine compartments, motor mounts, and other elevated-temperature environments where plastic components typically fail.

Specification Summary & Compliance

This locknut features M16x2mm metric coarse threads with Class 6H thread fit per ISO standards, ensuring precise dimensional accuracy and proper mating with Class 6g bolts. The 24mm width across flats and 16mm height provide standard wrenching dimensions for consistent tool engagement. Manufactured from zinc-plated steel with right-hand thread direction and external hex drive. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current substance restriction requirements for industrial applications worldwide.