The smooth shank allows the screw to pull the wood together for a tight joint that prevents the wood from pulling or splitting. Contains both round and flat head screws. Philips flat head screws include: #6x 1/2-inch , #4x 1/2-inch , #6x 3/4-inch , #10x 1-1/4-inch , and #8x 3/4-inch . Slotted round head screws include: #6x 1-1/4-inch and #8x 1-inch.
