Abstract: Means and method for assembling an optical fiber cable with a tubular member that secures an outside protective jacket of the cable. The inside wall of the tubular member is provided with serrations such that when the wall is physically reduced on the protective jacket, the serrations engage and retain the jacket without compressing the inner optical fiber so that it is free to move longitudinally within the jacket. This is accomplished by using a crimping device having a crimping aperture that is sized to precisely control the amount of reduction of the tube wall onto the protective jacket.