Service Caster Floor Truck Locks feature durable construction, zinc plated finish, and rubberized non-slip foot.
For use with standard profile 4 inch casters.
Extended Height: 5-3/4"
Retracted Height: 5-1/16"
Top plate size: 4" x 4-1/2"
Bolt hole dimensions: 2-5/8" x 3-5/8" to 3" x 3".
Floor truck locks are designed to prohibit movement of carts, dollies, and manual powered trucks.