S-92088A126 5/16"-24 Thumb Nuts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with Black Oxide coated 18-8 Stainless Steel, ideal for humid or chemically exposed environments.
• Superior hand-tightening grip from the knurled round head design, allowing for secure installation without tools in tight spaces.
• Precise and reliable fastening ensured by 5/16"-24 UNF fine threading with Class 2B fit, reducing the risk of cross-threading and vibration loosening.
• Robust structural integrity from the standard profile and 1/2" collar diameter, providing stable load distribution and repeated use durability.
• Full-threaded engagement for consistent clamping force along the entire 5/8" height, improving joint security in assembly applications.
• Compliance with stringent regulations including REACH and RoHS 3, ensuring safety and environmental standards for industrial use.
• Right-hand thread direction for intuitive, standard installation compatible with common machinery and components.

Professional Applications & Engineering Value

This thumb nut is engineered to address common industrial challenges such as frequent adjustments, corrosion in harsh settings, and the need for tool-free maintenance. The Black Oxide 18-8 Stainless Steel construction offers excellent resistance to rust and oxidation, making it suitable for outdoor equipment, marine hardware, and food processing machinery where moisture is prevalent. The knurled round head and standard profile enable quick, secure hand-tightening in confined areas, reducing assembly time and minimizing tool dependency. With 5/16"-24 UNF fine threading and a Class 2B thread fit, it ensures precise alignment and vibration resistance in applications like electronic enclosures, automotive components, and precision instruments, enhancing operational reliability and lifespan.

Specification Summary & Compliance

This thumb nut adheres to Class 2B thread fit tolerances and UNF (Unified National Fine) thread standards, providing consistent dimensional accuracy. It is manufactured from Black Oxide 18-8 Stainless Steel with a collar diameter of 1/2", height of 5/8", and fully threaded right-hand design. The product complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring it meets environmental and safety requirements for industrial and commercial use.