How do I adjust the screw on the Hillman bottom pivot

Hello Millie, and thank you for your inquiry regarding this item from Prime-Line Products. You can special order Prime-Line's adjustment wrench, model number N 6824, or you can find a 1/2 inch open wrench that fits the adjustment nut at the bottom of the door. For faster service, be sure to take advantage of the CHAT option located in the lower right-hand corner of your screen, where you can quickly connect to a representative for assistance. Otherwise, you can contact the manufacturer directly with your questions regarding this item, or any other product manufactured by Prime-Line Products by calling their toll free number at (877) 649-9740, or by contacting them by email at prodtech@primeline.net