For aligning heavy duty wardrobes, bookcases, modular furniture.
Plate has spikes which are easily hammered onto cabinet bottom edge, then secured in position by a countersunk 15 mm length screw from underneath first and also 2x pan head x 15 mm length screws from the side
If required an 8 mm through hole in the base of the cabinet, allows you to adjust the leveller from the above, by using a SW6 hex key or a blade screwdriver.
A 12 mm through hole is required for screwdriver access.