S-91831A130 3/8"-24 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 in high-motion environments
- Excellent corrosion resistance with 18-8 stainless steel construction for longevity in harsh industrial conditions
- Reliable high-temperature performance with nylon insert rated up to 220°F for demanding applications
- Precise thread engagement with UNF fine threading and Class 2B fit ensuring consistent, secure connections
- Easy installation and removal using standard 9/16" external hex drive compatible with common tools
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements
- Optimized dimensional stability with standard hex profile and 29/64" height for consistent performance
Professional Applications & Engineering Value
This 3/8"-24 UNF nylon insert locknut delivers critical vibration-resistant performance for industrial machinery, automotive assemblies, and equipment subjected to constant motion. The 18-8 stainless steel construction provides inherent corrosion resistance, eliminating premature failure in humid or chemically aggressive environments. The nylon insert locking mechanism creates consistent friction against mating threads, preventing loosening under dynamic loads without damaging threads. With UNF fine threading and Class 2B thread fit, this locknut ensures precise engagement with male threads, reducing the risk of cross-threading while maintaining clamping force. The 220°F temperature rating makes it suitable for engine compartments, industrial ovens, and other elevated-temperature applications where plastic components typically fail.
Specification Summary & Compliance
This locknut features 3/8"-24 UNF fine threading with Class 2B thread fit per Unified Thread Standard specifications. Manufacturing complies with industry standards for external hex drive (9/16" width) and standard hex nut profile (29/64" height). The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (including 224 SVHC substances as of 06/10/2022), meeting stringent environmental regulations for industrial components.
