S-93882A225 1/4"-20 x 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments.
• High-strength thread forming capability creates durable, vibration-resistant threads in materials like steel, aluminum, and brass without requiring pre-tapped holes.
• Integrated flange design provides wider bearing surface for enhanced load distribution and eliminates the need for separate washers.
• External hex drive allows for high-torque installation with standard tools, reducing assembly time and improving efficiency.
• Fully threaded shank maximizes grip length and pull-out resistance across the entire fastened joint.
• Coarse UNC thread profile ensures quick installation and reliable performance in softer metals and sheet materials.
• Optimized for No. 2 drill bit (0.221") simplifies installation planning and ensures precise fit in designated applications.

Professional Applications & Engineering Value

This heavy-duty hex flange tapping screw delivers exceptional engineering value by solving common fastening challenges in metalworking and assembly. The zinc-plated steel construction provides essential corrosion protection for industrial equipment, automotive components, and structural frameworks. Its thread forming (SW) design cold-forms mating threads in steel, aluminum, brass, cast iron, and sheet metal, creating stronger connections than conventional cutting screws while eliminating chip removal issues. The combination of external hex drive and integrated flange streamlines assembly processes, reduces component count, and provides reliable clamping force for vibration-prone applications. This makes it ideal for manufacturing fixtures, machinery guards, and electrical enclosures where durable thread engagement and efficient installation are critical.

Specification Summary & Compliance

This 1/4"-20 UNC coarse thread tapping screw maintains standard Class 2A thread tolerances for reliable interchangeability. Manufactured to industry standards for thread forming screws with right-hand direction and fully threaded design. The product complies with RoHS and REACH environmental directives and meets applicable ASME/ANSI fastening specifications for dimensional consistency and performance in industrial applications.