Kreg SPS-F150-500 Fine Pan-Head Pocket Hole Screw, #6 x 1-1/2", 500CtHighlights: Screw Size: No 6 Length Under Head: 1 1 2" Finish: Zinc Plated Head Style: Pan Thread Type: Fine Material: Steel Point Type: 17 Auger Type: Self Tapping Used for hardwood material such as oak, maple, hickory, cherry and walnut Washer head provides a large amount of surface area on the head of the screw helping to ensure the strongest possible hold