S-91851A670 1 3/4"-5 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh or outdoor environments.
• Exceptional load distribution from the extra-wide thin profile, reducing point stress and preventing material damage.
• Quick and easy installation with a standard external hex drive and coarse UNC threads for faster assembly.
• Reliable, consistent thread engagement ensured by the Class 2B thread fit, minimizing cross-threading risks.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safe and responsible sourcing.
• Heavy-duty performance in a compact 31/32" height, saving space without sacrificing strength.
• Broad compatibility with standard 1 3/4"-5 UNC male threads, making it a versatile inventory item.

Professional Applications & Engineering Value

This extra-wide thin hex nut is engineered to solve critical challenges in heavy machinery, structural frameworks, and large-scale assembly. Its 18-8 Stainless Steel makeup provides excellent resistance to rust and chemical exposure, extending service life in demanding conditions like marine or chemical processing plants. The UNC coarse thread and Class 2B thread fit ensure rapid, secure fastening even where vibration is a concern, while the wide bearing surface distributes clamp load effectively, preventing joint failure. This makes it a reliable choice for construction, industrial equipment, and infrastructure projects where corrosion resistance and durability are non-negotiable.

Specification Summary & Compliance

This nut features a 1 3/4"-5 UNC coarse thread with a Class 2B thread fit for consistent, reliable mating. Dimensions are precisely controlled at 2 3/4" width and 31/32" height. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to strict environmental and safety standards for industrial use.