A quick release lock tumbuckle includes a socket slideable axially over a turnbuckle connecting between two threaded rods at a desired end-to-end spacing. The socket has a multi-sided interior cross section engaging a multi-sided exterior cross section of the tumbuckle, and also engaging a radially extending feature on one of the threaded rods to prevent rotation of the turnbuckle in the locked position. The socket is slideable axially off the tumbuckle to allow rotation of the turnbuckle in the unlocked position to change the desired end-to-end spacing between the two threaded rods.
