S-90532A225 5/16"-18 Cap Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with nickel-plated steel construction, ideal for harsh industrial environments
• Reliable coarse threading with UNC 5/16"-18 and Class 2B fit ensures easy installation and vibration resistance
• Standard hex profile with external drive allows for quick, secure tightening using common tools
• Durable cap design provides a finished appearance while protecting threads from damage and contaminants
• Compliance with RoHS 3 and REACH standards guarantees safe, environmentally responsible use in global markets
• Right-hand threading offers compatibility with standard assembly processes, reducing installation errors
• Precise dimensions (9/16" width, 15/32" height) ensure consistent performance in repetitive applications

Professional Applications & Engineering Value

This 5/16"-18 UNC cap nut is engineered from nickel-plated steel to address common industrial challenges like corrosion and mechanical stress. Its Class 2B coarse threads facilitate rapid assembly in high-vibration settings, such as machinery, automotive, and structural frameworks, minimizing the risk of loosening. The external hex drive and standard profile enable efficient torque application with standard wrenches, reducing labor time. By combining a protective cap with robust materials, this fastener extends service life in exposed or demanding conditions, supporting reliable performance in industrial applications where durability and compliance are critical.

Specification Summary & Compliance

This cap nut adheres to UNC coarse thread standards with a Class 2B thread fit for consistent dimensional accuracy. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of hazardous substances. Manufactured under the inch measurement system, it features a thread size of 5/16"-18, width of 9/16", and height of 15/32", supporting reliable integration in various assemblies.