A method for connecting at least a first component and a second component together, wherein each said component comprises at least one keyway arrangement extending along the component and keyways of the keyway arrangement are spaced apart from one another. The method comprises the steps of: aligning the keyway arrangements of the first and second components such that the keyways intermesh to provide a continuous keyway passage extending longitudinally between the intermeshed keyways; and, extending a keyway connector comprising an arrangement of keys longitudinally within the continuous keyway passage such that the keys are retained by the keyways of the keyway arrangements. In the slip flange assembly 1001 embodiment shown, the first and second components are each in the form of a pipe (1002, 1003) or tube, the keyway arrangements are in the form of collars (1004, 1008) that extend around abutting ends of said pipes (1002, 1003) or tubes, and the keyway connector (1015) is annular.