A connection member which can connect structural elements and machine parts to each other, which can be fixed into a receiving groove and which does not get out without an apparatus, comprising - at least one body in which the apparatus is placeable, which has a recess through which the apparatus can pass and two slots parallel to each other, in which retainers of the apparatus are placeable, - at least one retaining surface which can create friction on walls of an aperture on a work piece and can provide fixation by ribs thereon, which can provide contact with the aperture on a workpiece, can enable adhesion by creating friction on the aperture walls and includes the ribs preventing undesired movements, - two pre-contact members which are the elements that first enter the aperture where mounting will be done, • which are opposingly positioned and which are in the form of a continuation of the retaining surfaces, and get connected to the retaining surfaces through the connecting points, • which form an inverted "V" shape geometry and make a narrow angle with the horizontal plane, • which can facilitate entry into the aperture on the work piece and can centre the aperture, - at least one intermediate member foldable during assembly and disassembly, • which urges the pre-contact members to move in the +x and -x directions and approach each other in the undesired interactions, • which is placed between the retaining surfaces and the pre-contact members, located parallel to the horizontal plane, gets folded during assembly and disassembly processes and becomes released by the withdrawal of the apparatus, • the angle of which with respect to the horizontal plane during movement varies between 0-180 degrees, • which is folded when it is pushed in the +y direction, which returns to its original state when the applied force is withdrawn, - at least one flexible member providing release after mounting into the aperture is complete. - at least one body in which the apparatus is placeable, which has a recess through which the apparatus can pass and two slots parallel to each other, in which retainers of the apparatus are placeable, - at least one retaining surface which can create friction on walls of an aperture on a work piece and can provide fixation by ribs thereon, which can provide contact with the aperture on a workpiece, can enable adhesion by creating friction on the aperture walls and includes the ribs preventing undesired movements, - two pre-contact members which are the elements that first enter the aperture where mounting will be done, • which are opposingly positioned and which are in the form of a continuation of the retaining surfaces, and get connected to the retaining surfaces through the connecting points, • which form an inverted "V" shape geometry and make a narrow angle with the horizontal plane, • which can facilitate entry into the aperture on the work piece and can centre the aperture, • which are opposingly positioned and which are in the form of a continuation of the retaining surfaces, and get connected to the retaining surfaces through the connecting points, • which form an inverted "V" shape geometry and make a narrow angle with the horizontal plane, • which can facilitate entry into the aperture on the work piece and can centre the aperture, - at least one intermediate member foldable during assembly and disassembly, • which urges the pre-contact members to move in the +x and -x directions and approach each other in the undesired interactions, • which is placed between the retaining surfaces and the pre-contact members, located parallel to the horizontal plane, gets folded during assembly and disassembly processes and becomes released by the withdrawal of the apparatus, • the angle of which with respect to the horizontal plane during movement varies between 0-180 degrees, • which is folded when it is pushed in the +y direction, which returns to its original state when the applied force is withdrawn, • which urges the pre-contact members to move in the +x and -x directions and approach each other in the undesired interactions, • which is placed between the retaining surfaces and the pre-contact members, located parallel to the horizontal plane, gets folded during assembly and disassembly processes and becomes released by the withdrawal of the apparatus, • the angle of which with respect to the horizontal plane during movement varies between 0-180 degrees, • which is folded when it is pushed in the +y direction, which returns to its original state when the applied force is withdrawn, - at least one flexible member providing release after mounting into the aperture is complete.