S-94519A103 5/8"-11 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
- Vibration-resistant locking performance through nylon insert technology that maintains secure fastening under dynamic loads
- Superior corrosion resistance with 316 stainless steel construction for harsh environments and chemical exposure
- Enhanced torque transmission from the extra wide hex profile that prevents tool slippage and damage
- High-temperature capability with nylon insert rated to 250°F (121°C) for demanding thermal applications
- Precision thread engagement with Class 2B fit ensuring consistent, reliable installation across assemblies
- Coarse thread advantage using UNC standard for faster installation and reduced cross-threading risks
- Environmental compliance meeting RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
This nylon insert locknut delivers critical vibration resistance where conventional fasteners fail. The 316 stainless steel construction provides exceptional corrosion resistance in marine, chemical processing, and outdoor applications, while the extra wide hex profile enables higher torque application without damaging the fastener. The UNC coarse thread design allows for rapid assembly in manufacturing environments, reducing installation time while maintaining Class 2B thread fit precision. The nylon insert maintains locking performance up to 250°F, making it suitable for engines, machinery, and equipment subjected to thermal cycling. This combination of materials and engineering addresses common industrial challenges of vibration loosening, corrosion degradation, and installation efficiency.
Specification Summary & Compliance
This locknut features 5/8"-11 UNC coarse threads with Class 2B thread fit for precise engagement. The external hex drive style with extra wide profile measures 1-1/16" across flats and 55/64" in height. Manufactured from 316 stainless steel with right-hand thread direction and nylon insert locking mechanism. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industrial applications worldwide.
