S-91849A039 1 1/8"-7 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• Enhanced load distribution and reduced surface pressure due to the extra wide hex profile, minimizing the risk of material damage and loosening under heavy loads.
• Reliable and quick assembly with coarse UNC threads and Class 2B fit, ensuring smooth engagement and consistent performance in high-vibration settings.
• Robust mechanical strength from the heavy-duty design and external hex drive, providing a secure grip for high-torque applications.
• Compliance with major environmental regulations including RoHS 3 and REACH, making it safe for use in regulated industries and global markets.
• Dimensional stability and precision with a substantial 1 13/16" width and 1 7/64" height, offering a secure and flush fit in demanding assemblies.
• Versatile right-hand thread design compatible with standard UNC 1 1/8"-7 bolts, simplifying sourcing and replacement in maintenance and production lines.

Professional Applications & Engineering Value

This extra wide hex nut is engineered to address critical challenges in heavy-duty industrial applications, such as structural steelwork, machinery assembly, and large-scale fabrication. The 18-8 Stainless Steel material provides excellent resistance to rust and chemical exposure, extending service life in corrosive environments like marine, chemical processing, and outdoor infrastructure. The coarse UNC thread and Class 2B thread fit ensure rapid installation and reliable holding power, reducing assembly time and preventing thread stripping under dynamic loads. Its extra wide profile distributes clamping force over a larger area, which helps prevent surface indentation and maintains joint integrity in high-stress connections, making it a dependable choice for engineers and procurement specialists seeking durable, corrosion-resistant fasteners.

Specification Summary & Compliance

This nut features a 1 1/8"-7 UNC coarse thread with a Class 2B thread fit for standard tolerance and smooth assembly. Key dimensions include a width of 1 13/16" and height of 1 7/64". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial use.