Service Caster #20 Series bolt hole swivel casters with 4 inch semi steel wheel and 1-1/2 inch tread with brake are a versatile caster choice. Featuring a zinc plated finish and double heat treated ball bearing raceways, these casters are ideal for light and medium duty racks, carts, equipment, and shop projects.
Wheel size: 4" x 1-1/4"
Wheel hardness: 70-80 Shore D Durometer
Bolt hole: 1/2" diameter
Mounting height: 5-1/8"
350 pound capacity per caster Wheel rotates on roller bearing (Use for manual speeds; 3 mph.)