S-93882A226 1/4"-20 x 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
• Excellent holding power in multiple metals through thread forming design, eliminating the need for separate tapping and reducing assembly steps.
• Quick and secure installation with external hex drive and UNC coarse threading, allowing for high torque application and minimizing cross-threading risks.
• Enhanced load distribution thanks to the integrated flange, providing a larger bearing surface and reducing material stress.
• Full-length threading for maximum grip, ensuring consistent clamping force along the entire shank in steel, aluminum, brass, cast iron, and sheet metal.
• Optimized compatibility with standard No. 2 drill bit (0.221" diameter), streamlining the drilling process and improving installation efficiency.
• Durable and reliable performance in heavy-duty applications, backed by robust material and precise thread forming technology.

Professional Applications & Engineering Value

This 1/4"-20 zinc-plated steel hex flange tapping screw is engineered to address common challenges in metal assembly, such as vibration loosening and material fatigue. Its thread forming (SW) technology displaces material to create strong, permanent threads without chips, making it ideal for steel, aluminum, brass, cast iron, and sheet metal applications. The UNC coarse thread and external hex drive enable rapid installation with standard tools, reducing labor time in industrial settings like automotive manufacturing, machinery enclosures, and structural metalwork. The zinc plating provides a protective barrier against rust, while the flange design enhances stability, preventing pull-through in thin materials. This screw delivers consistent holding power and durability, minimizing maintenance needs in demanding environments.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a 1/4"-20 coarse thread and Class 2A tolerance for reliable fit. It is fully threaded and features a blunt tip for precise alignment. Manufactured from zinc-plated steel, it meets general industry specifications for strength and corrosion resistance. Compliant with RoHS and REACH environmental standards, ensuring safe use in various industrial applications. Designed for use with a No. 2 drill bit (0.221" diameter), it supports efficient installation in metalworking projects.