S-97149A354 9/16"-18 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments
• Precise thread engagement with Class 2B fit and UNF fine threads, ensuring reliable, vibration-resistant connections
• Enhanced durability from the external hex drive and standard profile, allowing for high-torque applications without stripping
• Wide compatibility with 9/16"-18 UNF bolts and fine-threaded components, reducing assembly errors
• Environmental compliance meeting RoHS 3 and REACH standards, safe for regulated industries
• Optimal sizing at 7/8" width and 31/64" height for easy handling and space-efficient installations
• Right-hand threading for standard, intuitive fastening in machinery and equipment assemblies

Professional Applications & Engineering Value

This 9/16"-18 UNF hex nut is engineered to address common industrial challenges like corrosion, vibration loosening, and stringent regulatory demands. The Black-Oxide 18-8 Stainless Steel construction provides a robust barrier against moisture and chemicals, extending service life in applications such as automotive, marine, and outdoor machinery. With a Class 2B thread fit and fine thread spacing, it delivers superior clamp load retention and resistance to dynamic stresses, minimizing maintenance needs. The external hex drive design ensures easy installation with standard tools, making it a reliable choice for assembly lines and heavy-duty equipment where consistent performance is critical.

Specification Summary & Compliance

This hex nut adheres to UNF fine thread standards with a Class 2B thread fit for precise dimensional accuracy. It features a standard hex nut profile, right-hand thread direction, and is manufactured from 18-8 Stainless Steel with a Black-Oxide finish. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial supply chains.