S-90033A315 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel coating, extending service life in demanding industrial environments.
• Efficient thread forming design creates strong, permanent threads in sheet metal, reducing the risk of stripping and improving joint integrity.
• Precise 82° countersink angle ensures a flush, professional finish, minimizing protrusion and enhancing safety in assembled products.
• Full threading along the 3/4" length provides maximum grip and uniform load distribution, ideal for thin sheet metal up to 0.025" thickness.
• Phillips flat head drive allows for easy installation with standard tools, speeding up assembly while maintaining a low-profile appearance.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptance for your products.
• Right-hand threading with 12 threads per inch delivers reliable, consistent fastening performance in high-vibration applications.

Professional Applications & Engineering Value

These No. 10-12 thread forming screws are engineered to address common challenges in sheet metal assembly, such as material fatigue and thread failure. The Black-Oxide Steel construction provides enhanced durability against rust and wear, while the flat head profile and 82° countersink enable seamless integration into metal surfaces, preventing snagging and improving aerodynamic or aesthetic finishes. By utilizing a thread forming tapping method, these screws displace rather than remove material, creating stronger threads that resist loosening under stress. This makes them ideal for HVAC systems, electronic enclosures, and automotive panels where vibration resistance and long-term reliability are critical. The combination of Phillips drive and fully threaded design ensures quick installation and uniform clamping force, reducing assembly time and enhancing production efficiency.

Specification Summary & Compliance

This product adheres to standard inch measurements with a thread diameter of 0.19" and 12 threads per inch, ensuring precise fit in pre-drilled holes (recommended No. 21 drill bit, 0.159" diameter). The flat head design conforms to common industrial profiles, and the thread forming (Type A/AB) method follows established fastening principles for sheet metal. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming the absence of hazardous substances and supporting sustainable manufacturing practices.