S-90594A030 5/16"-18 Weld Nuts

Key Features & Benefits at a Glance

• Superior welding performance with a standard barrel profile and 3/8" height for consistent, strong welds in industrial assembly.
• Enhanced load distribution from the rectangular base design (7/8" length, 9/16" width) to minimize stress and prevent loosening under vibration.
• Reliable coarse threading with UNC 5/16"-18 and Class 1B fit for quick assembly and reduced cross-threading risks in high-volume applications.
• Durable steel construction ensures high tensile strength and resistance to wear in demanding environments.
• Right-hand thread orientation provides compatibility with standard tools and fastening processes for efficient installation.
• Compliance with environmental standards including REACH and RoHS 3, ensuring safe use in regulated industries.
• Optimized for inch-system applications with precise dimensions for seamless integration into existing machinery and structures.

Professional Applications & Engineering Value

This 5/16"-18 UNC steel weld nut is engineered to address common challenges in industrial welding and fastening, such as misalignment and weak joint integrity. The rectangular base offers a larger surface area for secure welding, reducing the risk of burn-through and improving stability in heavy-duty frames and equipment. Its coarse thread design allows for faster installation in high-vibration settings, like automotive manufacturing or construction machinery, where Class 1B thread fit ensures consistent engagement without seizing. Made from robust steel, it withstands harsh conditions, while the 3/8" barrel height facilitates precise placement, minimizing rework and enhancing productivity in assembly lines.

Specification Summary & Compliance

This weld nut adheres to UNC thread standards with a size of 5/16"-18 and Class 1B thread fit for reliable tolerance. Dimensions include a barrel diameter of 3/8", barrel height of 3/8", base length of 7/8", base width of 9/16", and base thickness of 1/16", ensuring precision in inch-system applications. It is manufactured to meet REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) compliance, supporting safe and environmentally responsible use in global industrial sectors.