The stiffness of axially loaded fully threaded screws is particularly relevant for the serviceability and, in
addition, for the ultimate limit state design of e.g. moment resisting frame corners, connections with inclined screws,
trusses or mechanically jointed beams. The currently available calculation models for the stiffness of axially loaded
fully threaded screws lead to large differences in the calculated stiffness for different screws. The reason for this is
assumed in the different selected test methods. This paper presents the results of compression shear tests to determine
the stiffness of axially loaded fully threaded screws. The results are compared to test results of mechanically jointed
beams to verify the suitability of the presented test method.