S-91833A159 1/4"-20 Thumb Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Excellent hand-tightening capability with a fully knurled round head design for secure, tool-free installation and adjustment.
• Reliable thread engagement provided by Class 2B UNC coarse threads, offering consistent performance and ease of assembly.
• Durable and robust build with a 1" head diameter and 1/2" collar height, designed for repeated use in demanding applications.
• Wide industrial compatibility due to standard inch measurement and right-hand threading, fitting common equipment and components.
• Environmental compliance assurance meeting REACH and RoHS 3 standards, supporting sustainable and safe manufacturing practices.
• Versatile fastening solution with fully threaded design, enabling flexible positioning and secure holds without specialized tools.

Professional Applications & Engineering Value

This 18-8 stainless steel thumb nut delivers exceptional value in industrial settings where tool-free adjustment and corrosion resistance are critical. The fully knurled round head ensures a firm grip, reducing slippage and enhancing operator efficiency in assembly, maintenance, or prototyping tasks. Its UNC coarse threads and Class 2B thread fit provide reliable fastening, minimizing cross-threading risks and ensuring consistent performance in machinery, enclosures, or fixtures. Ideal for applications requiring quick, secure modifications—such as in electrical panels, automotive components, or outdoor equipment—this thumb nut combines durability with user-friendly design, addressing common challenges like time-consuming tool use and environmental degradation.

Specification Summary & Compliance

This thumb nut adheres to UNC 1/4"-20 coarse thread specifications with a Class 2B thread fit for standard tolerance and secure engagement. Manufactured from 18-8 stainless steel, it includes a round head with knurled texture, a 1" head diameter, and full threading for consistent performance. The product complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring safety and sustainability in industrial use.