S-90673A101 1/4"-20 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 distorted thread top lock technology that maintains secure fastening under extreme conditions
- Enhanced corrosion protection with black-oxide steel finish for extended service life in demanding industrial environments
- High-strength performance with Grade 5 steel construction ensuring reliable load-bearing capacity
- Easy installation and removal with standard 7/16" external hex drive compatible with common tools
- Precise thread engagement with Class 2B UNC coarse threads providing consistent, reliable fastening
- Right-hand thread design for standard installation procedures and compatibility with common 1/4"-20 threaded components
- Regulatory compliance meeting RoHS 3 and REACH standards for safe use across various industrial applications
Professional Applications & Engineering Value
This Grade 5 Black-Oxide Steel Locknut with distorted thread top lock technology addresses critical vibration-induced loosening challenges in industrial settings. The engineered distortion in the upper threads creates consistent interference that resists rotational forces, making it ideal for machinery, automotive assemblies, and equipment subjected to constant motion. The UNC coarse thread configuration ensures rapid installation while maintaining holding power, while the black-oxide surface treatment provides essential corrosion resistance without compromising dimensional integrity. This combination of features delivers reliable performance in applications where vibration resistance and long-term fastener security are paramount, reducing maintenance frequency and preventing equipment downtime.
Specification Summary & Compliance
This locknut features 1/4"-20 UNC coarse threads with Class 2B thread fit for precise dimensional accuracy and reliable engagement. Manufactured to industrial standards with external hex drive (7/16" width) and 1/4" height profile. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial procurement requirements.
