S-97619A770 7/8"-9 ASTM A194 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• Exceptional load-bearing capacity and mechanical strength provided by ASTM Grade 8M classification
• Enhanced wrenching surface with an extra-wide hex profile for superior torque application and reduced slippage
• Reliable and quick assembly with coarse UNC threads and Class 2B fit for consistent engagement
• Long-term durability and performance assurance through compliance with ASTM A194 manufacturing standards
• Safe for regulated industries with full RoHS 3 and REACH compliance, meeting strict environmental directives
• Ideal for heavy-duty applications where a robust, inch-system external hex drive fastener is required

Professional Applications & Engineering Value

This extra wide hex nut is engineered to solve critical challenges in demanding industrial settings. The core of its value lies in the 316 stainless steel material, which offers excellent resistance to corrosion from chemicals, saltwater, and other aggressive agents, significantly extending service life in applications like marine hardware, chemical processing plants, and offshore structures. The ASTM Grade 8M strength rating ensures it can withstand high tensile and vibrational loads without failing, making it a trusted component in heavy machinery, structural assemblies, and high-pressure flanges. The combination of a coarse UNC thread and Class 2B fit facilitates faster installation and provides a reliable, secure connection that resists loosening under dynamic stresses. This nut is a fundamental solution for engineers and procurement specialists seeking a heavy-duty fastener that delivers uncompromising performance and reliability.

Specification Summary & Compliance

This nut features a 7/8"-9 UNC coarse thread with a Class 2B thread fit, ensuring dimensional accuracy and proper mating with corresponding bolts. It is manufactured in compliance with the ASTM A194 specification for nuts in high-pressure and high-temperature service. The material meets ASTM Grade 8M mechanical properties. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for hazardous substances.