Patent ID: 7441980

Claim:
A joining device comprising: a first component having a thru-hole defined by a helical rim; a second component having a threaded hole, said first and second components being arranged so that said thru-hole and said threaded hole are aligned, and being spaced from each other so as to leave a joining gap therebetween which may vary due to tolerances; a bolt for joining said first and second components; a compensating coil, said compensating coil and said helical rim of said thru-hole being of conforming dimensions to enable the compensating coil to be threadingly rotated through said helical rim; and engagement means releasably fixing the compensating coil on the bolt in order to transfer torque therebetween and releasing the compensating coil from the bolt when said torque exceeds a predetermined amount, such that rotatably driving said bolt causes said bolt and said compensating coil fixed thereupon to pass through said thru-hole of said first component until said compensating coil fills said joining gap, and further rotatably driving said bolt releases said engagement means and tightens said bolt by threaded engagement with said threaded hole of said second component for joining said first and second components.