S-91841A006 5-40 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Reliable and secure fastening due to Class 2B thread fit, ensuring consistent clamping force and reducing the risk of loosening under vibration.
• Quick and easy installation with a standard external hex drive and coarse (UNC) thread spacing, speeding up assembly times in production lines.
• Durable and long-lasting performance from the robust stainless steel material, providing high tensile strength and wear resistance.
• Broad compatibility with 5-40 UNC male threads, making it a versatile choice for various machinery and equipment assemblies.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe use in regulated industries and global markets.
• Standard inch dimensions (5/16" width) for easy integration with existing tooling and components, minimizing redesign needs.

Professional Applications & Engineering Value

This 5-40 UNC hex nut in 18-8 stainless steel is engineered to address common industrial challenges such as corrosion-induced failure and assembly inefficiencies. The coarse thread spacing and Class 2B thread fit provide superior engagement with mating threads, reducing cross-threading risks and ensuring a tight, vibration-resistant connection in dynamic environments. Its external hex drive allows for high-torque application using standard wrenches, making it ideal for industrial fastening in machinery, automotive, and construction sectors. The material's innate resistance to rust and chemicals extends service life, lowering maintenance costs and downtime in critical applications.

Specification Summary & Compliance

This hex nut features precise Class 2B thread fit per UNC standards, with dimensions including a 5-40 thread size, 5/16" width, and 7/64" height. It conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and compliance for global industrial use. Manufactured to meet common inch system specifications, it guarantees reliable performance in various assembly applications.