S-98667A706 5/8"-11 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion protection with black corrosion-resistant coating extends service life in harsh industrial environments
• Reliable thread engagement with Class 2B fit ensures consistent performance and reduces cross-threading risks
• Quick installation and removal through standard external hex drive design compatible with common tools
• Enhanced safety and aesthetics with cap nut design that covers exposed threads while providing finished appearance
• Robust construction using steel material delivers high tensile strength for heavy-duty applications
• Wide compatibility with 5/8"-11 UNC coarse threads matches common industrial equipment and components
• Environmental compliance with RoHS 3 standards meets international regulatory requirements

Professional Applications & Engineering Value

This heavy-duty cap nut delivers exceptional performance in demanding industrial settings where corrosion resistance and thread reliability are critical. The black corrosion-resistant-coated steel construction provides superior protection against rust and degradation, significantly extending service life in environments exposed to moisture, chemicals, or outdoor conditions. The 5/8"-11 UNC coarse thread configuration ensures rapid assembly and disassembly while maintaining strong holding power, making it ideal for machinery, structural frameworks, and equipment maintenance. The Class 2B thread fit guarantees consistent engagement with mating components, reducing the risk of stripping or cross-threading during installation. The external hex drive design allows for high-torque application using standard wrenches, while the cap profile provides both safety by covering sharp thread ends and an aesthetically finished appearance.

Specification Summary & Compliance

This cap nut features 5/8"-11 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring precise dimensional accuracy and reliable performance. The product maintains RoHS 3 (2015/863/EU) compliance with exemption 6(a) for lead as an alloying element in steel. Physical dimensions include 15/16" width across flats and 1" height for optimal strength-to-size ratio. The right-hand thread direction and standard cap nut profile provide industry-standard compatibility across various applications.