SKU N 7282
This is a spring-loaded, 3/4 inch square glide or guide in a 3/8 inch plastic base. It mounts on the top edge of a bi-fold door that is 1 inch to 1-3/8 inch thick. To install use a hammer to lightly tap into the pre-drilled top mount hole. Used by Alliance Doors and a variety of bi-fold door manufacturers.