Abstract: An improved connector for joining and locking together a pair of abutting members. Each of the members have at least a shallow groove on each end thereof. The groove has an open surface extending longitudinally therealong. The width of the groove along the bottom surface is larger than the opening. The connector matingly engages the shallow grooves whereby the members are abutted and locked into place. The locking of the connector to the members is provided by the use of a resilient deformable joining key engaging grooves of a smaller dimension, pivotable tabs with protrusions engaging apertures in the surface of the shallow grooves opposite the groove opening or plugs insertable partially through the connector into apertures in the shallow grooves opposite the opening.