Leveling Mount Leveling Mount Type Swiveling Stud Base Dia 2 1/2 in Height 5.38 in Load Capacity 4500 lb Thread Size 5/8 In.-11 Construction Steel Hex 7/8 in Includes Locking Nut Bolt Length 4 in Finish Nickel-Plated Base Material Steel Thrust Pad Material Non-Skid Pad Base Steel w/ Non-Skid Pad