S-91850A049 2"-4 1/2 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance in harsh environments thanks to premium 316 Stainless Steel construction
- Exceptional durability and longevity for heavy-duty applications requiring reliable, long-term performance
- Enhanced wrenching surface provided by the extra wide hex profile for improved grip and easier installation with standard tools
- Reliable coarse thread engagement with UNC and Class 2B fit for faster assembly and reduced cross-threading risk
- Robust external hex drive design ensures high torque capability and secure fastening in demanding conditions
- Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and regulatory acceptance
- Versatile large diameter range (2" - 4 1/2") accommodates a wide variety of industrial and construction projects
Professional Applications & Engineering Value
Engineered for the most demanding industrial applications, this heavy-duty hex nut provides a critical fastening solution where failure is not an option. The use of 316 Stainless Steel offers unparalleled resistance to corrosion from chemicals, saltwater, and extreme weather, making it ideal for marine, chemical processing, and offshore installations. The extra wide hex profile and external hex drive design deliver a larger contact area for wrenches, distributing force more evenly to prevent rounding and stripping under high torque. Combined with the coarse UNC thread and Class 2B thread fit, this nut ensures quick, secure assembly even in dirty or vibrating environments, reducing installation time and maintenance costs while enhancing structural integrity.
Specification Summary & Compliance
This extra wide hex nut conforms to UNC coarse thread standards with a Class 2B thread fit for consistent dimensional accuracy and reliable performance. Manufactured from 316 Stainless Steel in inch measurements, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to strict environmental and safety standards for industrial use.
