S-91855A333 1/2"-20 Cap Nuts
Cap Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise Class 2B thread fit ensures smooth assembly and reliable, vibration-resistant connections
- Fine UNF thread design provides enhanced load distribution and superior holding power
- External hex drive style allows for easy installation with standard tools and high torque application
- RoHS 3 and REACH compliance meets strict environmental regulations for global industrial use
- Standard cap nut profile offers consistent performance across various assembly applications
- Durable 13/16" height provides substantial thread engagement for maximum fastening security
Professional Applications & Engineering Value
This 1/2"-20 UNF fine thread cap nut delivers exceptional engineering value in demanding industrial applications where corrosion resistance and thread precision are critical. The 18-8 stainless steel construction withstands corrosive environments while maintaining structural integrity, making it ideal for machinery, automotive, and marine applications. The Class 2B thread fit ensures consistent engagement with mating components, reducing the risk of cross-threading and providing reliable performance in high-vibration settings. The external hex drive design facilitates quick installation and removal with standard tools, streamlining maintenance operations. This cap nut effectively seals thread ends while providing a finished appearance, solving both functional and aesthetic challenges in professional assemblies.
Specification Summary & Compliance
This precision fastener features 1/2"-20 UNF fine threads with Class 2B thread fit per UNF standards, ensuring dimensional accuracy and reliable performance. The nut measures 3/4" width across flats and 13/16" height with standard cap nut profile. Manufactured from 18-8 stainless steel with right-hand thread direction, this component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial fasteners.
