S-91853A033 1/2"-13 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 through cotter pin locking mechanism for permanent fastening in high-stress environments
- Exceptional corrosion resistance with 18-8 stainless steel construction suitable for harsh industrial conditions
- Precise thread engagement with Class 2B UNC coarse threads ensuring reliable installation and removal
- Easy installation and maintenance with standard external hex drive compatible with common wrench tools
- Enhanced safety compliance meeting both RoHS 3 and REACH environmental regulations for industrial applications
- Optimized slot dimensions (0.15" depth and width) for secure 1/8" cotter pin retention
- Heavy-duty construction with 3/4" width and 9/16" height providing robust mechanical strength
Professional Applications & Engineering Value
This stainless steel castle locknut delivers critical vibration resistance in demanding mechanical systems where safety and reliability are paramount. The 18-8 stainless steel composition provides excellent corrosion resistance for outdoor equipment, marine applications, and industrial machinery exposed to moisture and chemicals. The 1/2"-13 UNC coarse thread with Class 2B fit ensures smooth installation while maintaining precise tolerances. The integrated cotter pin slot design prevents rotational loosening under extreme vibration, making it ideal for automotive suspensions, agricultural equipment, construction machinery, and aerospace applications where permanent fastening is essential for operational safety and reduced maintenance intervals.
Specification Summary & Compliance
This castle locknut features 1/2"-13 UNC coarse threads with Class 2B thread fit for standard industrial applications. Dimensions include 3/4" width across flats and 9/16" height with 0.15" minimum slot dimensions for 1/8" cotter pins. Manufactured from 18-8 stainless steel with external hex drive configuration. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial procurement requirements.
