Apparatus for installing fasteners in a workpiece is mounted for computer controlled movement over the workpiece surface. The apparatus includes all of the tools, fasteners, drives and controls on-board that are needed to operate autonomously, without external connections. The apparatus may also include an on-board power supply for powering the tools, drives and controls. A supply of fasteners is held in an on-board replaceable cassette. An on-board fastener transferring device transfers individual fasteners from the cassette to the tools.