S-91850A230 7/16"-20 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction, ideal for marine and chemical processing applications.
• Enhanced wrenching surface and improved load distribution from the extra wide hex profile, reducing the risk of rounding and component damage.
• Reliable, vibration-resistant assembly ensured by the 7/16"-20 UNF fine thread and Class 2B thread fit for precise engagement and holding power.
• High-torque capability and easy installation with the standard external hex drive, compatible with common hand and power tools.
• Long-term operational integrity with compliance to RoHS 3 and REACH regulations, ensuring safety and environmental responsibility.
• Dimensional consistency for predictable performance, with a defined 3/4" width and 27/64" height for accurate fit in designed assemblies.

Professional Applications & Engineering Value

This heavy-duty extra wide hex nut is engineered to solve critical challenges in demanding sectors. The 316 stainless steel material provides exceptional corrosion resistance, making it a preferred choice for marine equipment, offshore platforms, and chemical processing plants where exposure to saltwater and aggressive chemicals is common. The UNF fine thread (7/16"-20) offers a tighter seal and superior resistance to loosening under vibration compared to coarse threads, which is vital for machinery, heavy vehicle assemblies, and structural frameworks. The extra wide profile increases the bearing surface, distributing clamp load more effectively to prevent damage to connected parts and reduce stress concentrations. This combination of a corrosion-resistant alloy and a precision Class 2B thread fit ensures long-term reliability, minimizes maintenance downtime, and enhances the safety of industrial fastening systems.

Specification Summary & Compliance

This nut conforms to Unified National Fine (UNF) thread standards with a 7/16"-20 thread size and a Class 2B thread fit for consistent, free-spinning assembly. Key dimensions include a 3/4" width across flats and a 27/64" height. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its adherence to strict environmental and safety standards for industrial components.