S-98886A737 1/2"-20 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional thermal stability for reliable performance in environments ranging from -50°F to 550°F, reducing failure risks in extreme conditions.
• Superior chemical resistance due to PEEK plastic material, ensuring longevity and durability in corrosive or harsh industrial settings.
• Precise Class 2B thread fit with UNF fine threads for secure, vibration-resistant connections, minimizing loosening in critical assemblies.
• Standard external hex drive design allows for easy installation and removal with common tools, speeding up maintenance and reducing labor costs.
• Lightweight and non-corrosive properties compared to metal alternatives, ideal for applications where weight savings and rust prevention are priorities.
• Compliance with REACH and RoHS 3 standards ensures environmental safety and meets global regulatory requirements for hazardous substances.
• Right-hand thread direction and fine thread spacing provide enhanced grip and load distribution, improving overall joint integrity in high-stress scenarios.

Professional Applications & Engineering Value

This 1/2"-20 UNF PEEK plastic hex nut is engineered to address common challenges in demanding industries, such as aerospace, automotive, and chemical processing, where exposure to extreme temperatures and aggressive chemicals can degrade standard fasteners. Made from high-performance PEEK plastic, it maintains structural integrity from -50°F to 550°F, preventing thermal expansion issues and ensuring consistent clamping force. The Class 2B thread fit and fine thread spacing deliver precise engagement, reducing the risk of thread stripping and vibration-induced failures in high-temperature applications. Its black color and external hex drive facilitate easy identification and tool access, streamlining assembly in tight spaces. By offering excellent chemical resistance and compliance with REACH and RoHS 3, this nut provides a reliable, long-lasting solution for engineers seeking to enhance safety and reduce maintenance in corrosive or regulated environments.

Specification Summary & Compliance

This hex nut adheres to UNF thread standards with a 1/2"-20 fine thread and Class 2B thread fit, ensuring precise dimensional accuracy and compatibility with corresponding male threads. It meets REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) compliance, confirming the absence of restricted hazardous substances. The standard inch system profile with dimensions of 45/64" width and 1/4" height supports consistent performance in industrial assemblies.