Ulticlip Classic has a dual mounting bracket. Ulticlip Classic works with single point attachment holsters and can also be used with holsters that use a retention slot to lock the clip in place without using a screw. Includes 6 piece screw kit Classic Specs: Best option for belt-less carry 100% American Made Military Grade Black Oxide Finish Heat Treated to RC 42-49 C-1075 Spring Steel Wax/Oil Treated Steel – aids in smooth operation & rust inhibitor Minimum Profile, Maximum Concealment Over 10X The Retention Compared To Most Holster Clips Dual Mounting Bracket Size: 3.5″ x 7/8″ Weight: .78 oz. 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