Gate Caster Load Rating 125 lb. Wheel Width 1 In. Wheel Dia 4 In. Inside Bolt Hole Spacing (2) Holes Spaced 2-1/4 in Apart Outside Bolt Hole Spacing (2) Holes Spaced 2-1/4 in Apart Stem Length 6 In. Overall Height 10-1/2 In. Mounting Bolt Dia 3/8 In. Plain Bore Wheel Bearings Double Ball Raceway Plate Size 4 x 1 In. Wheel Material Rubber Wheel Color Black Core Color Black Core Material Nylon Frame Material Steel Frame Finish Zinc Plated Plate Thickness 1/5 In.