Leveling Mount Leveling Mount Type Swiveling Stud Base Dia 1 1/4 in Height 5 in Load Capacity 300 lb Thread Size 3/8 In.-16 Construction Steel Hex 5/8 in Includes Locking Nut Bolt Length 4 in Finish Yellow Zinc-Plated Base Material Delrin(R) Thrust Pad Material Non-Skid Pad Base Delrin(R) w/ Non-Skid Pad