S-97008A726 5/16"-18 x 1" Thumb Screws

Key Features & Benefits at a Glance

• Effortless hand-tightening with a wide 11/16" spade head and 3/4" height for maximum torque application without tools.
• Superior corrosion resistance from the zinc-plated steel finish, extending service life in demanding industrial environments.
• Exceptional mechanical strength with a Rockwell B55 hardness and 40,000 psi tensile strength to withstand high-stress applications.
• Reliable and quick assembly thanks to the UNC coarse thread and Class 2A fit, ensuring consistent engagement and vibration resistance.
• Enhanced stability and load distribution from the integrated 0.563" flange, preventing over-tightening and surface damage.
• Versatile full-thread design allows for secure fastening at any point along the 1" length, accommodating various material thicknesses.
• Standardized right-hand thread ensures compatibility with common industrial components and simplifies installation processes.

Professional Applications & Engineering Value

This zinc-plated steel thumb screw is engineered to solve common industrial fastening challenges where tool-less access and frequent adjustments are required. The flanged spade head design provides a larger contact surface, distributing clamping force evenly to prevent damage to soft materials or finished surfaces, making it ideal for electronic enclosures, machinery panels, and assembly jigs. The UNC coarse threads and Class 2A thread fit offer quick installation with minimal cross-threading risk, while the robust 40,000 psi tensile strength ensures reliable performance under dynamic loads. Its fully threaded 1" length and right-hand direction make it a versatile choice for maintenance and manufacturing lines, reducing downtime and improving operational efficiency.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a 5/16"-18 thread size and Class 2A thread fit for precise dimensional accuracy. It is manufactured from zinc-plated steel with a hardness of Rockwell B55 and tensile strength of 40,000 psi. The product features a fully threaded design, coarse thread spacing, and a flanged spade head with a diameter of 0.563". Compliant with industry standards for mechanical fasteners, it meets general requirements for performance in industrial applications, though specific certifications like RoHS or REACH should be verified per batch if needed.