Masonry screws come in two common head types: a flat head for countersinking, or a hex washer head to sit on top of the surface of the material. These Tapcon 1-1/4-in. x 3/16-in, concrete anchors ...
consider a flat head screw if you want the head flush with your workpiece or a pan head if flushness doesn't matter. Your choice of head will also inform the type of screwdriver you'll need for ...