Retaining and fixing holder, especially overlap adhesive joint

The construction of the holder enables the correct retaining and fixing of adhesive joints of flat sheets while making the adhesive joint, ensuring the shape and dimensional accuracy of the joint and the axiality of the adherends. The holder according to the invention ensures an invariable arrangement of the adherends in the curing process of the adhesive joint without the necessity for additional measurements and markings of the length of the overlap. Thanks to this, the process of producing overlap adhesive joints is significantly accelerated and is performed with greater accuracy and repeatability