S-94819A064 7/8"-9 ASTM F594 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance in harsh environments due to 316 stainless steel construction, ideal for marine, chemical, and outdoor applications.
• Reliable, vibration-resistant assembly ensured by the coarse UNC thread profile, which resists loosening under dynamic loads.
• Guaranteed dimensional consistency and interchangeability through compliance with the stringent ASTM F594 manufacturing standard.
• Superior thread engagement and ease of installation provided by the Class 2B thread fit, reducing the risk of cross-threading.
• Robust mechanical performance from the standard external hex drive and profile, allowing for high torque application with common tools.
• Safe for regulated industries as the nut is fully compliant with RoHS 3 and REACH environmental directives.
• Durable, long-lasting service life thanks to the material's inherent resistance to pitting and crevice corrosion.

Professional Applications & Engineering Value

This heavy-duty 7/8"-9 UNC hex nut in 316 stainless steel is engineered to solve critical challenges in demanding industrial settings. Its coarse thread design is particularly valuable in applications prone to vibration, contamination, or where rapid assembly is required, as it is less likely to gall or clog compared to fine threads. The ASTM F594 compliance ensures that every nut meets precise dimensional and mechanical property standards, providing reliability in structural assemblies, machinery, and processing equipment. The Class 2B thread fit offers an optimal balance between ease of threading and strength, minimizing assembly time while maintaining a secure connection. This combination of a corrosion-resistant material and a robust external hex drive makes it an indispensable component for engineers and procurement specialists in the chemical, marine, oil & gas, and food processing industries, where fastener failure is not an option.

Specification Summary & Compliance

This hex nut features a 7/8"-9 UNC coarse thread with a Class 2B thread fit, ensuring standard-compliant dimensional accuracy for reliable performance. It is manufactured in accordance with the ASTM F594 specification for stainless steel nuts. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental and safety regulations for hazardous substances.