S-97135A418 3/8"-16 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 locking that maintains secure fastening under dynamic loads
- Exceptional strength performance with Grade 8 classification for heavy-duty industrial applications
- Enhanced corrosion protection from black-oxide steel construction in demanding environments
- Reliable high-temperature operation with nylon insert rated to 220°F for thermal stability
- Precise thread engagement with Class 2B fit ensuring consistent installation and removal
- Industry-standard compatibility through 3/8"-16 UNC coarse threading for broad application use
- Environmental compliance assurance meeting REACH and RoHS 3 standards for global manufacturing
Professional Applications & Engineering Value
This Grade 8 nylon insert locknut delivers critical vibration resistance where conventional fasteners fail. The black-oxide steel construction provides essential corrosion protection while maintaining the Grade 8 strength rating required for structural and heavy machinery applications. The nylon insert locking mechanism creates consistent friction against vibration loosening, with temperature resilience up to 220°F for engine compartments, industrial equipment, and automotive assemblies. The 3/8"-16 UNC coarse thread with Class 2B fit ensures reliable engagement with standard bolts while the external hex drive facilitates installation in confined spaces. Engineered for manufacturing, construction, and transportation sectors where vibration integrity is paramount.
Specification Summary & Compliance
This locknut features Class 2B thread fit per UNC standards with precise dimensions of 9/16" width and 29/64" height. Manufactured to Grade 8 strength classification with right-hand 3/8"-16 UNC coarse threading. Compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations. The nylon insert maintains locking performance up to 220°F maximum temperature while the black-oxide surface treatment provides corrosion resistance for extended service life in industrial environments.
