Pan American Screw, LLC.

WoodMaster^™ Flat Head Screws with NIBS-- The flat head provides a flat top surface designed to sit flush with the surface. Nibs are added under the head to aid in countersinking and locking the screw in place while the patented Woodmaster^™ serrated tooth thread design offers many advantages- quick starting, reduced splitting, less drive torque and a tighter hold. They come with our patented Recex^® Square-Phillips combo recess drive designed to offer the dependability of a square drive recess with the convenience and after-market serviceability of a Phillips drive.