M10 thread size, cap diameter: 33mm. The thick nut has a strong load-bearing capacity, strong and durable. The leveler has a load-bearing capacity of 2200 pounds. Adjustable feet You can adjust the height of the leveling feet to a suitable size with the Allen wrench, and then secure it with lock nuts. L-shaped mounting bracket The L-shaped design makes the cabinet leg leveler with the hook on the bottom edge provide good support for most furniture. Contents: 4 furniture feet, 16 screws. Wide range of uses: These sturdy leveling feet can support cabinets, tables, workbenches, etc., and are useful tools for home, office, garage, etc.