Ucan STP8916B #8 x 9/16" Pan Head Square Socket Self-Tapping Sheet Metal Screws – Zinc Plated Steel – (Bulk Pack Available)

High-Torque Performance for Precision Metal Work

The UCan STP8916B is a professional-grade self-tapping screw engineered for HVAC, electrical, and general sheet metal applications. Featuring a Square Socket (Robertson) Drive, these screws provide a significantly more secure bit engagement than standard Phillips heads. This eliminates "cam-out," allowing you to drive screws faster and with more force—critical when working in awkward overhead positions or high-volume production environments.

Constructed from high-carbon steel and finished with a Zinc Plating, these screws offer reliable corrosion resistance for indoor and light-duty outdoor projects. The Pan Head design provides a low-profile, clean aesthetic while offering a wide bearing surface to securely clamp sheet metal without tearing. With a sharp Type A self-tapping point, the STP8916B creates its own threads as it is driven, ensuring a tight, vibration-resistant fit in thin-gauge metals.

Why the UCan STP8916B is the Contractor’s Choice:

• Square Socket Drive: Provides a "stick-fit" engagement that reduces bit slippage and prevents damage to the screw head.
• Self-Tapping Efficiency: Sharp Type A point allows for fast starts and effortless penetration into sheet metal.
• Zinc Plated Finish: Protects against rust and corrosion, ensuring long-term structural integrity in varied environments.
• Wide Pan Head: Distributes pressure evenly to prevent pull-through in thin-gauge materials.
• Precision Manufacturing: Uniform threading and head dimensions ensure consistent performance across every screw in the pack.

Specifications