Service Caster #20 Series 7/8 inch expanding stem swivel casters with 4 inch blue solid blue polyurethane wheel and top lock brake. Featuring a zinc plated finish, these casters are ideal for work tables, shop projects, and any equipment with round or square tube legs.
The solid polyurethane wheel performs well on most surfaces, and excels on hard surfaces like concrete, tile, and wood. They will not develop flat spots from extended inactivity, or mark and mar floor surfaces.
Mounting Height: 5-1/8"
Expanding Adapter Size (Inside Diameter): 7/8"
Wheel Size: 4" x 1-1/4"
300 pound capacity per caster
Wheel hardness: 60 - 65 Shore (D) Durometer