S-91775A744 Length 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel finish, 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 tooling costs.
• Optimized oval head with 82° countersink provides a flush, professional finish that minimizes snagging and improves aesthetic appeal.
• Reliable Phillips No. 2 drive ensures secure torque transmission and reduces cam-out during high-speed assembly operations.
• Full threading along the 5/8" length delivers maximum grip and uniform stress distribution across the entire fastened joint.
• Precision-matched No. 21 drill bit compatibility guarantees proper hole sizing for secure fastening in materials up to 0.025" thickness.
• Compliance with RoHS 3 and REACH regulations ensures environmental responsibility and global market acceptance for your products.

Professional Applications & Engineering Value

These thread forming tapping screws are specifically engineered for sheet metal applications where vibration resistance and joint integrity are critical. The Black-Oxide Steel construction provides essential corrosion protection in industrial settings, while the A/AB screw type with fully threaded design creates durable, strip-resistant threads in thin gauge materials. The oval head profile with 82° countersink angle sits flush with surfaces, eliminating protrusions that could interfere with moving components or compromise safety. With 12 threads per inch and 0.19" thread diameter, these screws deliver optimal clamping force for HVAC systems, electrical enclosures, automotive panels, and machinery guards where reliable fastening is non-negotiable.

Specification Summary & Compliance

These inch-system screws feature No. 10-12 thread specifications with standard thread forming tolerances suitable for sheet metal applications. The Phillips drive (Size No. 2) and standard oval head profile comply with industry-accepted installation requirements. Manufacturing and material composition adhere to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental safety and regulatory acceptance for industrial use worldwide. The combination of 0.362" head diameter and 5/8" length provides optimal dimensional stability for consistent performance across production runs.