4" x 2" Heavy Duty "Rubber on Cast Iron" Caster - Swivel with Brake

-Top Plate: 3-15/16x4-1/2

-Bolt Hole Spacing: 2-5/8 x 3-5/8 to 3 x 3

-Attaching Bolt Size: 3/8   

-Diameter: 4"

-Tread Width: 2"

-Load Cap: 350 lbs / ea

-Overall Height: 5-5/8"

-Rubber on Cast Iron