Abstract: A readily detachable fastener for mounting upon an enclosure, the fastener having a base member with channeled edge portions designed to slidably engage the enclosure upon which it is mounted. A connector pin extends outwardly from the base member, and is designed to releasably lock into a pin receiving hole of the enclosure such that the detachable fastener may be attached or removed from the enclosure, as desired. A latch is pivotally connected to the base member, and carries a bail which catches on the cover of the enclosure when the latch is pivoted to an open position. The latch may then be pivoted to a closed position, thereby tightly securing the cover to the enclosure. The base member and latch are constructed with openings therethrough so as to accommodate locking the same together with a conventional lock.