S-99183A230 M27 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision distorted top threads that maintain locking force under extreme conditions
• Exceptional strength and durability with Class 10 strength rating for heavy-duty industrial applications
• Enhanced corrosion protection from zinc-plated steel construction in demanding environments
• Reliable thread engagement with Class 6H thread fit ensuring precise mating with compatible bolts
• Easy installation and removal using standard tools thanks to external hex drive design
• Industry compliance assurance with RoHS 3 (2015/863/EU) environmental standards
• Optimized for coarse thread applications with M27 x 3mm metric threading for robust fastening performance

Professional Applications & Engineering Value

This M27 top lock nut delivers critical vibration resistance in high-stress environments where conventional fasteners fail. The distorted thread locking mechanism creates permanent friction that prevents loosening from machinery vibrations, thermal cycling, and dynamic loads. Made from zinc-plated steel, it provides essential corrosion protection while maintaining the Class 10 strength rating required for structural applications. The metric coarse threading (3mm pitch) ensures rapid installation in automotive assemblies, industrial equipment, and heavy machinery where reliable, maintenance-free fastening is paramount. The external hex design accommodates standard wrenching tools, streamlining assembly processes while delivering consistent locking security throughout the product lifecycle.

Specification Summary & Compliance

This heavy-duty locknut features M27 x 3mm metric coarse threading with Class 6H thread fit tolerance for precision engagement. The distorted top lock design provides permanent vibration resistance without requiring additional locking components. Manufactured from zinc-plated steel with dimensions of 41mm width and 27mm height, it meets Class 10 strength requirements for demanding applications. The product is fully RoHS 3 (2015/863/EU) compliant and features right-hand thread direction with external hex drive for standard tool compatibility.