S-91845A039 1 1/8"-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 outdoor use.
• Reliable coarse threading (1 1/8"-7 UNC) ensures quick assembly and reduces the risk of cross-threading in high-vibration applications.
• Precise Class 2B thread fit guarantees consistent engagement and secure fastening with mating bolts, minimizing loosening.
• Heavy-duty external hex drive (1 11/16" width) provides excellent torque transmission and tool access for demanding industrial use.
• Robust dimensional profile (31/32" height) offers enhanced load distribution and mechanical strength under high stress.
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring safety and environmental responsibility in global supply chains.
• Standard inch system design simplifies sourcing and replacement in North American machinery and equipment maintenance.

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this 1 1/8"-7 UNC coarse thread hex nut addresses critical needs in construction, machinery assembly, and structural frameworks. The 18-8 Stainless Steel material provides exceptional resistance to rust and chemical exposure, reducing maintenance costs in corrosive settings like marine or chemical processing plants. Its coarse thread design enables faster installation and superior performance in high-vibration environments, preventing spontaneous loosening in equipment such as conveyor systems, heavy vehicle components, and industrial pumps. The external hex drive and standard profile ensure compatibility with common wrenches, streamlining workflow for maintenance teams. By integrating Class 2B thread fit, it ensures precise alignment and reliable clamping force, enhancing joint integrity in load-bearing structures.

Specification Summary & Compliance

This hex nut adheres to UNC coarse thread standards with a Class 2B thread fit for consistent dimensional accuracy. Key specifications include a thread size of 1 1/8"-7, width of 1 11/16", and height of 31/32". It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring compliance with hazardous substance restrictions and supporting sustainable procurement practices in B2B sectors.