S-91745A544 1/4"-20 x 1 1/4" Thumb Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Effortless hand-tightening and adjustment thanks to the large, easy-to-grip spade head design.
• Quick and reliable assembly enabled by UNC coarse threading for faster installation and reduced cross-threading risk.
• Consistent and precise thread engagement ensured by the Class 2A thread fit for dependable performance.
• Maximum grip along the entire length with a fully threaded 1-1/4" shank for secure fastening in various material thicknesses.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant for safe and responsible use.
• Durable and long-lasting performance from a robust right-hand thread design built for repeated hand-tightening cycles.

Professional Applications & Engineering Value

This 1/4"-20 thumb screw is engineered to solve critical assembly challenges where tools are impractical or speed is essential. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it a reliable choice for industrial equipment, electronic enclosures, and outdoor applications. The large spade head offers an exceptional grip surface, allowing for sufficient torque to be applied by hand for secure clamping and frequent adjustments. The UNC coarse thread and Class 2A fit ensure rapid installation and a reliable hold in wood, metal, and plastic, reducing assembly time and minimizing the risk of thread damage during hand-tightening operations.

Specification Summary & Compliance

This thumb screw features a 1/4"-20 UNC thread with a Class 2A thread fit for standard clearance and ease of assembly. It is fully threaded and has a right-hand thread direction. The product is manufactured to be compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety standards for hazardous substances.