Abstract: In a deadbolt gate lock having an elongated casing, a manually reciprocal deadbolt mounted within the casing and projectable therefrom, an actuator pin connected to the deadbolt and extending outwardly through an elongated slot in the casing, and a push button plunger lock mounted within the casing having a spring bolt retainingly engageable within the deadbolt for securing the deadbolt in a projected position; the improvement which comprises a pair of spaced aligned spacer blocks snugly nested and retained within the casing, having aligned bores guidably receiving the deadbolt, the blocks retainingly engaging the plunger lock. A removable set screw on the plunger normally prevents its removal from the plunger lock, the casing having an access opening in registry with the set screw when the plunger lock is unlocked.