Self-tapping Sheet Metal screws feature a pan head which allows a low profile head finish. Available in stainless steel and a zinc-plated finish.
Phillips pan head
Pan heads are slightly rounded with short vertical sides. Phillips drive is x-shaped for installation with a phillips screw driver.
Slotted pan head
Pan heads are slightly rounded with short vertical sides. Slotted drive has a simple slot for a flat bladed screw driver.
Slotted flat head
Flat heads are countersunk (cone shaped under the head) with a flat top. Slotted drive has a simple slot for a flat bladed screw driver.