This is a spring-loaded, 7/8 in. diameter nylon roller guide in a steel base. It mounts on the top edge of a bi-fold door that is 1 in. to 1-3/8 in. thick. Commonly used by Acme, Stanley, Cox on their door systems as well as a variety of other door manufacturers.
Used by a variety of bi-fold door manufacturers
Used on bi-fold doors up to 30 lbs. each
7/8 in. diameter roller
Steel base and nylon roller
No fasteners required
A soft mallet may be required for installation
For further dimensional information, please see the line drawing