This contribution describes analytical evaluation and experimental verification of the friction and force conditions in the prestressed bolted connections. In the case of using standard fasteners (bolts and nuts) there were evaluated mainly influence of advanced coatings using (e.g. "Xylan 1088", "Delta Seal Black") and lubricants (e.g. "Gleitmo", "MOLYCOTE“) into the threaded surfaces of bolted joints. To achieve the set goals modular design testing stand was designed, realized and verified. Achieved analytical findings and experimental verification will allow to refine the technological processes of assembly of bolted joints, which will have a major impact on the strength, durability and reliability of the screw connections (fasteners). Discovered knowledge are not currently available for design engineers during the designing of bolted joints. Design engineers typically use only a recommendations of retailers and manufacturers when designing of bolted joints.