S-97568A722 1/2"-13 x 2 1/2" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with a large 2 1/4" wing head, eliminating the need for tools and speeding up assembly.
• Superior corrosion resistance provided by the zinc-plated iron finish, extending the screw's service life in various environments.
• Reliable and consistent threading with a Class 2A thread fit and coarse UNC thread, ensuring easy starts and secure fastening.
• Full-length threading for maximum grip and engagement along the entire 2 1/2" length, providing versatile and secure fastening points.
• Compliance with strict environmental standards including RoHS 3 and REACH, making it suitable for regulated industries and global supply chains.
• Right-hand thread direction for intuitive, standard installation that reduces operator error and training time.
• Durable iron construction offers a robust and cost-effective solution for repeated hand-tightening applications.

Professional Applications & Engineering Value

This zinc-plated iron thumb screw is engineered to solve common industrial challenges where tool-free, rapid access and disassembly are critical. The wing head design provides exceptional leverage for hand-tightening, making it ideal for panels, access doors, and machinery guards that require frequent maintenance. The fully threaded 1/2"-13 UNC coarse thread and Class 2A fit ensure quick engagement and a secure hold, reducing the risk of cross-threading. The zinc plating offers a protective barrier against rust and corrosion, which is vital in environments with moisture or chemical exposure. This combination of features delivers a reliable, user-friendly fastening solution that enhances operational efficiency in manufacturing, electronics enclosures, and assembly line applications.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a size of 1/2"-13 and a Class 2A thread fit for standard tolerance and easy assembly. The head diameter tolerance is -0.0156" to 0.0156". It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free of hazardous substances and suitable for use in regulated markets.