They made joints in stone keeping the lintels in place horizontally using a tongue and groove joint and subsequently fixing the upright and lintel with a ball and socket joint or mortice and tenon.

Radial distortion of the flexible component in the stop valve can be adjusted so as to ensure the joint depth between flexible screw thread trepanning circular groove and screw thread on the screw.

An embodiment of a connection system for a grease cover of a constant velocity joint includes a groove portion formed in a generally annular portion of the constant velocity joint.