3" Nylon Wheel Leveling Caster with Flat Top Plate - Set of 4
-Top Plate: (Flat Type) 3-3/4 X 3 - 3/4
-Bolt Hole Spacing: 2- 3/4 X 2-3/4
-Bolt Size: 4-M10 XP1.5 X 25 L
-Wheel Diameter: 3"
-Wheel Type: Nylon
-Tread Width: 1 - 3/16
-Swivel Radius: 2 -3/64
-Load Capacity: 1322lb