S-90077A313 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments.
• Efficient thread-forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and labor costs.
• Dual Phillips/Slotted drive options provide versatile installation flexibility for various tooling setups on the production line.
• Full threading along the 3/4" length ensures maximum grip and uniform stress distribution across the entire fastened joint.
• Precision-engineered pan head with 0.473" diameter offers excellent bearing surface for secure clamping in sheet metal assemblies.
• Optimized thread geometry (0.242" diameter, 10 TPI) delivers reliable pull-out resistance in thin-gauge materials up to 0.025" thickness.
• Compliance with international standards including RoHS 3 and REACH ensures environmental responsibility and global market acceptance.

Professional Applications & Engineering Value

These No. 14 zinc-plated steel tapping screws are engineered specifically for sheet metal applications where vibration resistance and permanent fastening are critical. The thread-forming technology eliminates the need for separate tapping operations, creating stronger threads that won't strip or loosen under dynamic loads. The A/AB screw type with pointed tip and fully threaded design ensures rapid penetration and maximum thread engagement in materials up to 0.025" thickness. The combination of zinc-plated steel corrosion protection and the pan head style with dual Phillips/Slotted drive makes these fasteners ideal for HVAC systems, electrical enclosures, automotive panels, and industrial equipment where reliable, long-term performance is essential.

Specification Summary & Compliance

This No. 14 x 3/4" tapping screw features precision thread forming with 0.242" thread diameter and 10 threads per inch, designed for use with 5.5mm drill bits (0.2165" diameter). The fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide. The right-hand threaded design with standard pan head profile (0.473" diameter, 0.162" height) provides consistent performance in sheet metal fastening applications.