Abstract: A key attachment device for securing at least one key in a key case or the like receptacles. The device comprises an attachment plate having a hollow housing, which housing is provided with a side wall and disposed in a face of the attachment plate. At least one transverse slot is provided in the side wall of the housing for receiving an attachment end of a key hook member therein. Means is provided for retaining the attachment end of the key hook member in the slot. The attachment end has a tapered shaft portion of circular cross-section, an enlarged head at a free end of the shaft portion, and a key hook secured to the shaft opposite the enlarged head. The shaft tapers in a direction outwardly from the head. The head is retained captive in the hollow housing with the shaft portion protruding through the slot. The tapered shaft portion permits rocking side displacement of the attachment end in the slot and arcuate displacement along the slot.