Abstract: Device for the joining of components, by way of example furniture components, which device comprises at least one connecting piece (19), which in mounted position of the components (15, 16) is attached to the components by means of a glue joint, so that they are held together. The glue for the glue joint is supplied by the connecting piece (19, 23) having a portion with double walls, between which a quantity of glue (21) is placed, the cross-section of said connecting piece across said portion being larger than the mounting space (17, 18), into which the connecting piece shall be inserted, so that during the assembling the double walls are pressed against each other and squeeze out the glue onto the outer surfaces of the connecting piece through openings provided in the walls.