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The STEWART FASTENER J2524BHTZ is a self-drilling tek screw with a hex washer head, sized 1/4-14 x 1-1/2 inches and finished in steel with zinc plating for corrosion resistance. Each jar contains 100 screws sold as a single unit. This screw is designed for fastening metal to metal or metal to light-gauge structural materials without pre-drilling, making it a reliable choice for sheet metal assembly, HVAC ductwork fabrication, metal framing, and similar trade applications. The hex washer head allows for consistent torque with a standard hex driver or nut driver, and the integral washer distributes load across the fastening surface.
These tek screws are well suited for HVAC installers, sheet metal workers, and contractors working with light-gauge steel construction. The 1/4-14 thread size and 1-1/2 inch length make them appropriate for joining thin-to-medium gauge metal panels, duct flanges, and metal track assemblies in both residential and light commercial settings. They are sold per jar of 100, providing a practical quantity for ongoing field or shop use.
Designed as a standard 1/4-14 x 1-1/2 inch hex washer head self-drilling tek screw for general metal-to-metal fastening applications in HVAC, metal framing, and sheet metal work.
Installation is performed with a hex driver or nut driver sized for a 5/16-inch hex head. Confirm the base material gauge is within the rated drilling capacity of a 1/4-14 tek screw before driving. Apply consistent, moderate pressure to allow the drill point to engage before full speed is reached to prevent walking. Follow applicable building codes and manufacturer guidelines for fastener spacing in structural or duct applications.
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