Plate Caster with Flat-Free Wheels Load Rating Range 300 to 999 lb Load Rating 990 lb Tread Ribbed Wheel Dia 9 13/16 in Wheel Width 3 3/8 in Inside Bolt Hole Spacing 5-1/2 in x 5-1/2 in Outside Bolt Hole Spacing 5-1/2 in x 5-1/2 in Caster Brake Type No Brake Included Caster Product Group Swivel Caster Caster Sub-Type Swivel Non-Marking No Wheel/Tread Material Rubber Frame Finish Zinc Plated Swivel Raceway Type Double Ball Mounting Bolt Dia 5/8 in Number of Wheels 1