The UltiTuck combines 3 great features into 1 clip. It replaces most two hole horizontally mounted clips while providing the additional features: Tuckable design - The innovative design transforms a traditional holster into a tuckable holster. Beltless carry - The Ultituck is built around the Ulticlip patented locking system which allows for beltless carry Adjustable cant - Two T shaped slots allow for adjustable cant and variable mounting hole widths of .60" to 1" UltiTuck provides the same great retention and concealment as found in the original Ulticlip. Verify the UltiTuck has the right mounting option for your application by printing our mounting template. 6 piece screw kit includes: 2 screws (.24″ long) , 2 posts (.15″ long) , 2 rubber washers (.10″ thick”) Black Zinc Plating Combination Standard/Phillips Pan Head Screw Open & Slotted Post .36″ – Screw Head Diameter .40″ – Post Head Diameter .20″ Post Barrel Diameter 8-32 Threading on All Screws & Posts