S-97246A113 1/4"-20 x 4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with galvanic-barrier coated 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• High-strength thread forming design creates durable, permanent threads in materials like steel and stainless steel without pre-drilling, reducing installation time and labor.
• Integrated No. 5 drill tip efficiently penetrates up to 1/2" thickness in sheet metal and steel, eliminating the need for separate pilot holes and speeding up assembly.
• Flanged head with external hex drive provides increased bearing surface for better load distribution and secure, high-torque installation with standard tools.
• Coarse UNC 1/4"-20 threading ensures quick engagement and strong holding power in a wide range of materials, from sheet metal to heavy-duty steel.
• Fully threaded 4" length offers maximum grip and adjustability across thick assemblies, enhancing structural integrity in demanding applications.
• RoHS 3 compliance guarantees environmental and safety adherence for global industrial use, meeting strict regulatory standards.

Professional Applications & Engineering Value

This 1/4"-20 tapping screw is engineered to address common challenges in metal fabrication and assembly, such as galvanic corrosion and time-consuming pre-drilling. The galvanic-barrier coated 18-8 stainless steel material prevents bimetallic corrosion when fastening dissimilar metals, extending service life in outdoor or corrosive settings like construction and automotive industries. Its thread forming (CSD) design and integrated drill tip allow for direct installation into steel, stainless steel, and sheet metal up to 1/2" thick, reducing tool changes and improving workflow efficiency. The external hex drive and flanged head ensure high clamping force and vibration resistance, making it ideal for heavy-duty applications where reliability is critical. By combining durability with ease of use, this screw minimizes downtime and maintenance costs in industrial operations.

Specification Summary & Compliance

This product features precise UNC 1/4"-20 coarse threads with standard tolerances for reliable engagement, and is fully threaded for consistent performance. It adheres to common industrial specifications for thread forming tapping screws (CSD type) and includes a No. 5 drill tip optimized for efficient penetration. Compliance with RoHS 3 (2015/863/EU) ensures it meets environmental safety requirements, supporting sustainable and regulated industrial use.