Yellow Passivated Countersunk Wood Screw with Shank Ribs and Torx Drive (Fischer PowerFast II Wood Screw)
A high-performance steel wood screw featuring a yellow passivated zinc coating and partial thread, engineered for structural timber joinery, wood framing, and interior carpentry applications.
Torx / Star Drive (TX): Precision star drive recess delivers maximum torque transfer, reducing user fatigue and eliminating bit slippage or driver cam-out.
Countersunk Head with Under-Head Ribs: Sinks flush into hard and soft wood surfaces without splintering or tearing surface fibers.
Spiral Shank Reamer Ribs: Spiral cutter ribs on the unthreaded shank enlarge the drill hole to reduce friction, lower driving torque, and clamp wooden components tightly together.
Sharp Self-Tapping Tip: Deep thread profile with a fast-starting needle point grabs wood fibers instantly, minimizing pre-drilling requirements and preventing timber splitting near edges.