Ray & Lisa's 2009 Front Half Renovation

These are the engine hatch latches I found at the marine supply liquidator in Milwaukee. You mount two stops, one under the hatch cover and one under the opening frame. As you turn the handle, the lower arm spins, hits the stop on the hatch frame opening. When you turn the latch, the arm stops, you then just turn until it tightens down. When you turn it counter clockwise, as soon as there is no longer pressure on the arm, it spins out of the way and hits the other stop mounted on the hatch cover and you are free to open the hatch cover.