S-95615A220 1/2"-20 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 with nylon insert locking that maintains secure fastening in high-motion environments
- Enhanced corrosion protection through zinc-plated steel construction for extended service life in harsh conditions
- High-temperature performance with nylon insert rated for continuous operation up to 220°F (104°C)
- Precise thread engagement with UNF fine threading and Class 2B fit ensuring reliable installation and removal
- Heavy-duty strength meeting Grade 5 specifications for demanding industrial applications
- Standard hex profile with external drive for compatibility with common wrenching tools
- Regulatory compliance with REACH and RoHS 3 standards for environmental and workplace safety
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel locknut delivers critical vibration resistance in machinery, automotive, and industrial equipment where loosening under dynamic loads poses significant safety risks. The nylon insert locking mechanism creates consistent friction against bolt threads, maintaining clamp force without damaging fastener surfaces. Engineered with UNF fine threading and Class 2B thread fit, it provides superior engagement in precision assemblies while accommodating thermal expansion in environments approaching its 220°F temperature rating. The external hex drive design ensures straightforward installation with standard tools, reducing assembly time in production and maintenance scenarios across manufacturing, transportation, and heavy equipment sectors.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2B thread fit tolerance and UNF (Unified National Fine) 1/2"-20 thread specification. Compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations for hazardous substance restrictions. The Grade 5 strength classification ensures consistent mechanical performance, while the zinc plating provides corrosion protection for extended durability in industrial environments.
