S-90315A440 Length 1 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Efficient thread forming action creates strong, permanent threads in sheet metal without pre-tapping, reducing assembly time and labor costs.
• Optimized for sheet metal with a pointed tip and specific drill bit size (No. 32 / 0.116"), ensuring clean installation and maximum holding power in materials up to 0.025" thick.
• Secure, flush-mount finish thanks to the standard oval head and 82° countersink angle, providing a smooth surface and enhanced aesthetic appeal.
• Reliable, non-slip driving with the Phillips No. 2 drive, allowing for high torque application and minimizing the risk of cam-out during installation.
• Full-length threading ensures consistent grip and load distribution along the entire 1-3/4" length for a more secure and vibration-resistant fastening.
• Compliant with major environmental regulations including RoHS 3 and REACH, making them suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

These 18-8 stainless steel oval head Phillips tapping screws are precision-engineered for demanding sheet metal applications, from HVAC ductwork to electronic enclosures and automotive panels. The thread forming Type A/AB design displaces material to create robust, strip-resistant threads without generating chips, eliminating the need for clean-up and preventing contamination in sensitive assemblies. The combination of a fully threaded shank and corrosion-resistant 18-8 stainless steel ensures long-term durability and vibration resistance, even in environments with moisture or chemical exposure. By specifying the correct No. 32 drill bit and achieving a flush oval head finish, engineers can streamline production, reduce fastener failure, and maintain a professional appearance in finished products.

Specification Summary & Compliance

This No. 6 x 1-3/4" tapping screw features a 0.138" thread diameter with 18 threads per inch and is fully threaded. It conforms to industry standards for thread forming Type A/AB screws and is designed for use with a No. 32 drill bit (0.116" diameter). The product is manufactured to precise dimensional tolerances and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.