The listing is for a set of four (4) service caster series #20 casters, two (2) rigid and two (2) swivel casters with top locking brakes, with 5" diameter by 1-1/4" wide high temp phenolic wheels capable of supporting a total weight of 1,200 lbs. (300 lbs./caster).
- The top plate measures 3-1/8" x 4-1/8" with a bolt-hole pattern of 1-3/4" x 2-15/16" to 2-3/8" x 3-3/8" and can either be bolted or welded on.
- Bolt size: 5/16" (Hardware not included)