Service Caster #20 Series swivel caster with 4 inch semi steel cast iron wheel. These versatile casters are ideal for light and medium duty material handling, carts, equipment, shop projects, engine hoists, and engine lifts.
Wheel Size: 4" x 1-1/4"
Top plate size: 2-1/2" x 3-5/8"
Bolt hole pattern: 1-3/4" x 2-7/8" to 3"
Bolt size: 5/16" (hardware not included)
Mounting Height: 5-1/8"
350 pound capacity per caster