T-Nut Leg Leveler (Set of 4) Set of 4 - 3" Leg Levelers with T-Nuts, Medium Duty, 3/8" - 16 thread, Engineering Details and Instructions Included Hex Nut at the Base of the Leveler can be turned for Height Adjustment Slot on the Top of the Leveler for Adjusting Pivoting Base (1 1/2" wide) to Work on any Floor, with Plastic Glide Pad 3/8"-16 Thread Three Prong T-Nuts