Not sure about the International, but as I recall, the standard carbine had no screw between the stock and the action.
With the barrel elevated, the upper rear of the receiver fit into a recoil lug in the stock, and the whole works then pivoted down into the stock and was held in place by the barrel band.
With the barrel elevated, the upper rear of the receiver fit into a recoil lug in the stock, and the whole works then pivoted down into the stock and was held in place by the barrel band.
