S-90420A585 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates Pre-Drilling: Integrated drilling tip penetrates up to 0.187" thick steel, stainless steel, and sheet metal, saving time and labor costs.
• Superior Corrosion Resistance: Galvanic-barrier coated 18-8 stainless steel construction ensures long-term reliability in harsh industrial environments.
• Secure, High-Torque Installation: External hex drive and flanged hex head design provide excellent grip and prevent driver slippage during fastening.
• Strong, Reliable Thread Formation: BSD type thread forming design creates strong, strip-resistant threads in ductile materials for a secure, vibration-resistant hold.
• Full Thread Engagement: Fully threaded shank maximizes grip length and pull-out strength for a more robust assembly.
• Streamlined Inventory: A single screw type suitable for multiple materials including steel, stainless steel, and sheet metal.
• Regulatory Peace of Mind: Compliant with RoHS 3 and REACH, ensuring they meet stringent international safety and environmental standards.

Professional Applications & Engineering Value

This No. 12-14 thread forming tapping screw is engineered to solve critical assembly challenges in metalworking and fabrication. Its self-drilling tip (No. 3 type, 7/32" length) eliminates the need for a separate pre-drilling operation, significantly accelerating production lines and reducing the risk of misaligned holes. The thread forming (tapping) method cold-forms material around the threads, resulting in zero chip generation and a tighter, more vibration-resistant fit that is ideal for sheet metal and structural steel applications. The galvanic-barrier coated 18-8 stainless steel provides a critical defense against galvanic corrosion when used with dissimilar metals, extending the service life of the assembly. The combination of a flanged hex head and external hex drive offers a large bearing surface and high torque capability, ensuring reliable performance in automated or high-stress environments.

Specification Summary & Compliance

This screw conforms to the BSD standard for tapping screws. Key dimensional specifications include a No. 12 screw size with a 0.216" thread diameter and 14 threads per inch, a 1" length, and a 0.432" flange diameter. It is a right-hand threaded, fully threaded fastener with a round shank. The product is manufactured to be fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.