S-91849A040 1 1/4"-7 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• Enhanced load distribution due to the extra wide 2" profile, reducing stress concentration and preventing joint failure.
• Secure and reliable fastening with Class 2B thread fit, ensuring consistent engagement and vibration resistance in heavy-duty applications.
• Quick installation and removal using standard tools with the external hex drive style, saving time on assembly lines.
• Robust performance in coarse thread applications with 1 1/4"-7 UNC threading, providing strong holding power and resistance to loosening.
• Compliance with global environmental standards, including RoHS 3 and REACH, for safe use in regulated industries.
• Durable and maintenance-free operation thanks to the material's inherent strength and corrosion-resistant properties.

Professional Applications & Engineering Value

This extra wide hex nut is engineered to address critical challenges in industrial applications where vibration, heavy loads, and corrosive conditions are common. Made from 18-8 Stainless Steel, it offers excellent resistance to rust and chemical exposure, extending service life in machinery, structural assemblies, and outdoor equipment. The coarse UNC thread and Class 2B thread fit provide a reliable, easy-to-assemble connection that minimizes the risk of cross-threading and ensures consistent performance under stress. Its 2" width and 1 7/32" height enhance surface contact, distributing forces evenly to prevent bolt fatigue and joint failure. Ideal for construction, automotive, and marine sectors, this nut delivers durable fastening solutions that reduce maintenance downtime and improve operational safety.

Specification Summary & Compliance

This product adheres to Class 2B thread fit tolerances for precise engagement and is manufactured to UNC coarse thread standards with a 1 1/4"-7 thread size and right-hand thread direction. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use. Dimensions include a 2" width and 1 7/32" height, designed for consistent performance in inch-based systems.