Abstract: A shaft coupling mechanism having a concentric alignment pin and a pivoting cylinder with a latch pin that acts as a shaft end stop and coupling latch, when a second shaft is engaged. Pivoting latch pin enters a slot mounted on the secondary shaft locking the two shafts together. This device pertains to the quick release locking mechanism for securely fastening or joining two mechanically supported shafts so loads or pallets can be transferred from one shaft to the other. This device is of most value to load carrying devices (pallets) that incorporate the use of "open" linear bearings. A secondary application of this device is for the coupling of a mobile cart, also with linear shafts to a machine center for the removal and storage of palletized fixturing.