S-97190A160 9/16"-18 Locknuts
Locknuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance with integrated cotter pin slot for reliable, positive locking in high-stress environments
- Exceptional strength and durability from Grade 5 steel construction, capable of withstanding heavy-duty industrial loads
- Enhanced corrosion protection through zinc plating, extending service life in demanding applications
- Precise thread engagement with Class 2B UNF fine threads ensuring secure, vibration-resistant fastening
- Quick and secure installation using standard 7/8" external hex drive for efficient assembly and maintenance
- Safety-critical locking mechanism accommodates 9/64" cotter pins for fail-safe protection against loosening
- Regulatory compliance assurance meeting both RoHS 3 and REACH standards for industrial applications
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel locknut delivers critical security in applications where vibration-induced loosening poses significant safety risks. The precision-engineered 9/16"-18 UNF fine thread with Class 2B fit maintains consistent clamping force while the integrated cotter pin slot provides mechanical locking that cannot be compromised by extreme vibration or shock loads. The external hex drive allows for standard tooling compatibility, making it ideal for maintenance-heavy environments. Commonly specified for heavy machinery, automotive suspensions, agricultural equipment, and construction applications, this locknut solves the fundamental engineering challenge of maintaining joint integrity under dynamic loading conditions.
Specification Summary & Compliance
This 9/16"-18 UNF locknut features Class 2B thread fit for precise engagement and a standard 7/8" hex profile with 31/64" height. The cotter pin slot accommodates 9/64" diameter pins with minimum slot dimensions of 0.163" depth and 0.15" width. Manufactured from Grade 5 steel with zinc plating for corrosion resistance, the product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring suitability for industrial applications worldwide.
