S-97568A583 5/16"-18 x 1" Thumb Screws
Thumb Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Tool-free installation and adjustment with a comfortable 1 3/4" wide wing head for hand-tightening in tight spaces.
- Enhanced corrosion resistance from the zinc-plated iron construction, extending service life in various environments.
- Quick and secure fastening enabled by the coarse UNC thread and Class 2A fit, reducing assembly time.
- Full-length threading for maximum grip and engagement along the entire 1" length, providing versatile positioning.
- Reliable right-hand thread direction ensures standard, predictable tightening for operator convenience.
- Environmentally responsible manufacturing with full compliance to RoHS 3 and REACH regulations.
- Durable build for repeated use, designed to withstand manual handling in industrial and hardware applications.
Professional Applications & Engineering Value
This zinc-plated iron thumb screw is engineered to solve common challenges in maintenance, panel access, and equipment adjustment where tools are impractical or speed is critical. The wing-shaped head offers excellent grip, reducing hand fatigue during frequent installations or removals. Its 5/16"-18 UNC coarse thread and Class 2A fit provide reliable engagement in tapped holes, minimizing cross-threading risks and ensuring consistent clamping force. The zinc plating adds a protective layer against rust and corrosion, making it suitable for use in electronics enclosures, machinery guards, and other industrial applications that require both durability and regulatory compliance. This combination of user-friendly design and robust materials delivers long-term value by streamlining operations and reducing replacement needs.
Specification Summary & Compliance
This thumb screw features a 5/16"-18 UNC coarse thread with a Class 2A thread fit for standard tolerance and reliable performance. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of restricted hazardous substances. The right-hand thread direction and fully threaded 1" length provide consistent fastening characteristics suitable for general-purpose and industrial use.
