Defender Security S 4648 Mail Box Lock, 3 Cams, 5 Pin, Brass Plated, Pack of 1 Used on pedestal style mail boxes Features a 7/8 inch diameter body that is 13/16 inch deep 3 different cams for securing lock Diecast with a brass plated finish Can replace Bommer, Auth-Electric and Unified locks Key cannot be removed in the unlocked position A phillips head screwdriver and adjustab;e wrench required for installation For further dimensional information, please see the Line Drawing