Phillips (Cross Tip) screwdrivers are designed for screws with

Phillips (Cross Tip) screwdrivers are designed for screws with

• A. A four-way slot recessed into the head, blunt tip, and a 30 degree angle
• B. A straight slot
• C. A cross with a 60 degree angle
• D. A triangular slot

Answer: (A)

Phillips (Cross Tip) screws are designed around a cruciform cross recess in the head, which matches a cross-shaped driver with a blunt tip. That four-way cross geometry centers the driver and allows controlled cam-out if too much torque is applied, helping to prevent stripping. The 30-degree relation describes how the cross arms are arranged around the center, giving the self-centering, four-lobe contact that characterizes this drive style. This is why a straight-slot screw is not correct, and why other drive shapes like a cross with a different angle or a triangular slot don’t fit Phillips screws.

Phillips (Cross Tip) screws are designed around a cruciform cross recess in the head, which matches a cross-shaped driver with a blunt tip. That four-way cross geometry centers the driver and allows controlled cam-out if too much torque is applied, helping to prevent stripping. The 30-degree relation describes how the cross arms are arranged around the center, giving the self-centering, four-lobe contact that characterizes this drive style. This is why a straight-slot screw is not correct, and why other drive shapes like a cross with a different angle or a triangular slot don’t fit Phillips screws.