S-91850A220 5/8"-11 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 Stainless Steel material, ideal for harsh industrial environments and outdoor applications.
• Enhanced load distribution and grip due to the extra wide hex profile, reducing the risk of loosening under vibration or heavy loads.
• Reliable and quick assembly with coarse UNC threads and Class 2B thread fit, ensuring smooth engagement and consistent performance.
• Superior durability and strength for heavy-duty applications, supporting long-term use without degradation.
• Easy installation and removal with external hex drive design, compatible with standard tools for efficient maintenance.
• Compliance with environmental standards including RoHS 3 and REACH, making it safe for regulated industries and global supply chains.
• Accurate inch system sizing with 5/8"-11 thread specifications, ensuring precise fit and interchangeability in metric-conscious markets.

Professional Applications & Engineering Value

This 5/8"-11 UNC hex nut in 316 Stainless Steel is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The extra wide profile provides a larger bearing surface, distributing load evenly and minimizing wear in heavy-duty applications like construction, marine, and chemical processing. Its coarse thread design allows for faster assembly and better performance in dirty or high-vibration environments, while the Class 2B thread fit ensures reliable engagement without cross-threading. The corrosion-resistant properties of 316 Stainless Steel make it suitable for exposed or aggressive settings, reducing maintenance costs and downtime. Ideal for industrial nuts in machinery, pipelines, and structural assemblies, this nut delivers long-term reliability and compliance with global standards.

Specification Summary & Compliance

This hex nut features a 5/8"-11 UNC coarse thread with Class 2B thread fit for precise dimensional accuracy and smooth operation. It adheres to the inch measurement system and is manufactured to meet industry standards for external hex drive and right-hand thread applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for environmentally conscious industrial use.