Ground  foundation screws are made in the form of large metal tubular drills with special screw tips designed to drive the piles into the ground. Depending on the design (material) of the bearing walls, on the weight of the building or structure under which the screw foundation is installed, and on the type and bearing capacity of the soil.

To protect against corrosion, special compounds are applied to the surface of the piles or they are galvanized. In the central zone of our country, for the construction of wooden (beam, log, frame) individual residential buildings, piles with a trunk diameter of 108 mm and a length of 2500 mm (2.5 m) are most often used.

For other objects: lighter (hoz blocks, fences, greenhouses, etc.) or, conversely, heavier (stone buildings) and on uneven construction sites with difficult soils, the pile diameter can vary from 57 to 325 mm, and the length from 1.5 to 3 m. Moreover, when solid soil is deeper than the specified lengths of piles, piles can be built up right during their installation.