Leveling Mount, Leveling Mount Type Anti-Vibration, Base Dia. 3 in, Height 4.44 in, Load Capacity 4500 lb, Thread Size 5/8 In.-11, Construction Steel, Hex 7/8 in, Includes 2 Locking Nuts, Bolt Length 3 in, Finish Clear Zinc-Plated, Base Material Steel, Thrust Pad Material Anti-Vibration Pad, Anti-Vibration Yes, Base Steel w/ Anti-Vibration Pad