S-91855A690 8-36 Cap Nuts
Cap Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and long-term reliability
- Precise, secure fastening with Class 2B thread fit, ensuring consistent engagement and reducing the risk of cross-threading
- Enhanced vibration resistance due to fine UNF threads, maintaining clamp load in dynamic applications
- Easy installation and removal with external hex drive, compatible with standard tools for efficient assembly
- Clean, finished appearance with a standard cap nut profile, providing both aesthetic and protective closure
- Compliance with strict environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries
- Durable, all-metal construction offering full thread depth for reliable performance in high-stress applications
Professional Applications & Engineering Value
This 8-36 UNF fine thread cap nut is engineered to address critical challenges in precision assemblies where vibration resistance and corrosion protection are paramount. The 18-8 stainless steel material provides excellent durability against moisture, chemicals, and temperature variations, making it suitable for industrial machinery, electronic enclosures, and automotive components. The fine thread spacing and Class 2B fit ensure minimal backlash and superior holding power, reducing maintenance needs in high-cycle applications. Its external hex drive allows for quick, tool-friendly installation, streamlining production workflows while the capped end protects threads and enhances safety.
Specification Summary & Compliance
This cap nut features precision 8-36 UNF fine threads with Class 2B fit per UNF standards, ensuring dimensional accuracy and interchangeability. Key dimensions include a 5/16" width across flats, 11/32" height, and 5/32" thread depth. The nut complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious and regulated industries without hazardous substances.
