The CH751 fits a multitude of locks from Hillman, Hyoko, Ilco, Grainger, Southco, Spectrum, Hunter, Rainbird, Bauer, Pyramid, Midland, Wilkinson, Oswald, Acme, Ace, American, Century, Chutes International, Cutler, Hi-Rise Recycling Systems Inc., US, Valiant, Western, Nycor & Much More.