S-91841A175 6-40 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Precise fine thread engagement with 6-40 UNF threads, ensuring secure, vibration-resistant connections in critical assemblies.
• Consistent, reliable fit due to Class 2B thread tolerance, reducing the risk of cross-threading and assembly errors.
• Easy installation and removal with a standard external hex drive, compatible with common wrenches for efficient maintenance.
• Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe use in regulated industries.
• Durable, standardized profile with a 5/16" width and 7/64" height, providing strength and interchangeability in inch-based systems.

Professional Applications & Engineering Value

This 6-40 UNF fine thread hex nut in 18-8 stainless steel addresses common industrial challenges such as corrosion-induced failure and thread wear. Its fine thread spacing and Class 2B thread fit deliver enhanced clamping force and vibration resistance, making it suitable for precision equipment, automotive components, and electronic enclosures where reliable fastening is critical. The external hex drive allows for straightforward torque application, reducing installation time in high-volume production lines. By utilizing corrosion-resistant materials and standardized UNF thread specifications, this nut minimizes maintenance needs and extends service life in demanding applications.

Specification Summary & Compliance

This hex nut features a 6-40 UNF fine thread with Class 2B thread fit for consistent dimensional accuracy. It adheres to the inch measurement system, with a width of 5/16" and height of 7/64". The product is manufactured to standard industrial specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for global industrial use.