In this paper, the testing of metal rings connected with rivets, which make the barrel watertight, was carried out. Before the experimental part, it was described in general about the production of barrels and about the correct selection of wood for their production. In addition to the correct selection of wood for the production of barrels, it is necessary to choose rivets of sufficient dimensions that must secure the connection and withstand the shear loads to which they are exposed. After the description of the basic parts of the barrels, there follows the experimental part in which the Rockwell and Vickers hardness test, the tensile strength test and the recording of the microstructure were carried out. Before the test, the goal was to determine which of the rivets could bear the higher tensile load and under which conditions. During the hardness test, the results show that the rivet head has a higher hardness due to cold forming than the rivet body. Recording of the microstructure confirms the higher hardness of the head, i.e. smaller grain. The most important conclusion is drawn from the tests on the tear machine where rivets of different dimensions are tested. With a 6x12 rivet, brittle fracture of both rivets occurs, while with an 8x12 rivet, the rim tears while the rivets are deformed, but no breakage occurs.