S-91333A160 5/16"-18 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through nylon insert technology that maintains secure locking even under continuous motion
- Extended service life with black corrosion-resistant coating that protects against rust and environmental degradation
- Reliable high-temperature performance with nylon insert rated for maximum 220°F operating conditions
- Precise thread engagement with Class 2B UNC coarse threads ensuring smooth installation and consistent clamping force
- Industry-standard compatibility with 5/16"-18 UNC thread pattern for seamless integration into existing assemblies
- Easy installation and removal with standard external hex drive design compatible with common wrench tools
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing applications
Professional Applications & Engineering Value
This nylon insert locknut delivers critical vibration resistance for industrial equipment subjected to constant motion and mechanical stress. The black corrosion-resistant-coated steel construction provides durable protection in harsh environments where moisture and chemicals are present. With UNC coarse threads and Class 2B fit, these locknuts ensure reliable performance in automotive assemblies, machinery frames, conveyor systems, and electrical enclosures where loosening under vibration could cause equipment failure. The external hex drive allows for efficient installation using standard tools, while the nylon insert creates consistent locking force without damaging mating threads. Ideal for maintenance operations and OEM applications requiring dependable, reusable locking solutions.
Specification Summary & Compliance
This locknut features 5/16"-18 UNC coarse threads with Class 2B thread fit for standard industrial applications. Dimensions include 1/2" width across flats and 11/32" height. Manufactured from steel with black corrosion-resistant coating and nylon insert locking mechanism. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for global manufacturing requirements.
