S-91831A127 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 mechanism that maintains secure fastening in high-motion environments
- Excellent corrosion resistance with 18-8 stainless steel construction for long-term durability in harsh conditions
- Reliable high-temperature performance with nylon insert rated for continuous operation up to 220°F
- Precision thread engagement with Class 2B thread fit ensuring consistent, reliable installation and removal
- Industry-standard compatibility with UNC coarse thread pattern for broad application across equipment and machinery
- 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 industrial applications
Professional Applications & Engineering Value
This 3/8"-16 UNC nylon insert locknut delivers critical vibration resistance where conventional fasteners fail. The 18-8 stainless steel construction provides exceptional corrosion resistance for demanding environments including marine, chemical processing, and outdoor equipment. The nylon insert locking mechanism creates consistent friction against mating threads, preventing loosening under continuous vibration in machinery, automotive assemblies, and industrial equipment. With Class 2B thread fit and UNC coarse threading, this locknut ensures reliable engagement across standard components while the 220°F temperature rating maintains performance in elevated temperature applications. The external hex drive design enables quick installation with standard tools, reducing assembly time in production environments.
Specification Summary & Compliance
This locknut features 3/8"-16 UNC coarse threads with Class 2B thread fit for precision engagement. Dimensions include 9/16" width across flats and 29/64" height. Manufactured from 18-8 stainless steel with right-hand thread direction and external hex drive style. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility in industrial applications.
