Abstract: A repair patch kit for repairing holes in panels of composite materials includes a bolt having a rigid washer of about the same diameter as the hole to be repaired. The rigid washer bears against a slit disc that is substantially larger than the hole. The slit disc can be twisted to open the slit, and the slit can be inserted over the edge of the hole. The disc can then be "threaded" or rotated through the hole by merely revolving the bolt around the hold periphery. On the blind-side of the panel, the disc slit closes and a full disc form is presented to the blind-side of the panel. A set of resin-impregnated fabric plies is pushed through the hole behind the slit disc on the bolt and is pressed against the marginal regions of the hold on the blind-side of the panel by the slit disc.