S-94059A205 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments.
• Integrated sealing washer prevents leaks and provides a secure, vibration-resistant seal in steel and sheet metal assemblies.
• Self-drilling tip eliminates the need for pre-drilling, saving time and labor costs by penetrating up to 0.098" thickness.
• External hex drive allows for high-torque installation with standard tools, ensuring tight, reliable fastening.
• Thread forming design creates strong, durable threads in base materials, reducing the risk of stripping and improving load distribution.
• Fully threaded shank with 18 TPI offers maximum holding power and consistent grip along the entire length.
• BSD tapping screw type ensures compatibility with industry standards for reliable performance in demanding applications.

Professional Applications & Engineering Value

These No. 8 zinc-plated steel tapping screws are engineered to address common challenges in steel and sheet metal fabrication, such as material fatigue and corrosion. The thread forming technique cold-forms threads into the base material, which work-hardens the surrounding area for enhanced strength and resistance to loosening under vibration. Combined with the self-drilling tip, they streamline assembly by eliminating separate drilling steps, reducing installation time and potential errors. The integrated steel/rubber sealing washer provides an effective barrier against moisture and dust, making these screws ideal for outdoor enclosures, HVAC systems, and automotive panels where environmental sealing is critical. Their external hex drive ensures easy installation with common tools, supporting efficient workflows in industrial maintenance and production lines.

Specification Summary & Compliance

These screws adhere to BSD standards for thread forming tapping screws, with a right-hand thread direction and fully threaded design for consistent performance. The No. 8 size corresponds to a thread diameter of 0.164" and 18 threads per inch, ensuring precise fit and holding power. Manufactured from zinc-plated steel, they meet typical industry requirements for corrosion resistance and durability. The product is designed to comply with general industrial fastening specifications, including dimensional accuracy suitable for Class 2A thread fits, and is produced in accordance with RoHS and REACH environmental standards for safe use in various applications.