Leveling Mount Leveling Mount Type Swiveling Stud Base Dia 1 in Height 3.31 in Load Capacity 200 lb Thread Size 1/4 In.-20 Construction Stainless Steel Hex 1/2 in Includes Locking Nut Bolt Length 2.5 in Finish Stainless Steel Base Material Delrin(R) Thrust Pad Material Non-Skid Pad Bolt Material Stainless Steel Base Delrin(R) w/ Non-Skid Pad