S-99183A570 M12 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through precision distorted thread technology that maintains secure locking under extreme conditions
- Exceptional durability with Class 10 strength rating, providing reliable performance in heavy-duty industrial applications
- Enhanced corrosion protection from black phosphate steel coating, extending service life in demanding environments
- Precise thread engagement with Class 6H thread fit and extra fine 1.25mm pitch for superior holding power
- Easy installation and removal using standard 19mm external hex drive compatible with common tools
- Regulatory compliance assurance meeting both REACH and RoHS 3 environmental standards
- Optimized locking performance with top lock distorted thread design that prevents loosening under dynamic loads
Professional Applications & Engineering Value
This M12 locknut with distorted thread technology addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and heavy equipment. The black phosphate steel construction provides essential corrosion resistance while maintaining the Class 10 strength rating required for high-stress applications. The extra fine 1.25mm thread pitch and Class 6H thread fit ensure precise engagement with mating components, delivering reliable performance in environments subject to constant motion and thermal cycling. Engineered for external hex drive compatibility, this locknut simplifies maintenance while providing maximum holding power where traditional fasteners fail.
Specification Summary & Compliance
This metric locknut features M12x1.25mm extra fine threads with Class 6H thread fit tolerance and top lock distorted thread design. Dimensions include 19mm width across flats and 12mm height. Manufactured to Class 10 strength rating standards with full compliance to REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations, ensuring both performance reliability and regulatory adherence for industrial applications.
