Abstract: A threaded fastener that includes a drive head having a recessed region and a threaded shaft that is mechanically and radially attached to the drive head is improved to comprise a drive portion. The drive portion is mechanically attached to the opposite end of the threaded shaft as a drive head and has a geometric shape that is a mating image of the recessed portion of the drive head and is on the same axis as the drive head. With such a configuration, the drive portion of one threaded fastener can be mechanically coupled to the recessed region of another threaded fastener in a stacked fashion such that one threaded fastener is used to drive another threaded fastener into a threaded receptacle.

Abstract: A semiconductor device having a plurality of conductive leads extending therefrom is provided for reliably and repeatable positioning and holding a separate electronic device. The conductive leads are disposed apart to provide a predetermined space therebetween. Upstanding sidewall portions of desired dimensions are formed in the conductive leads at a predetermined distance from the central body portion of the semiconductor device. The separate electronic device is inserted in the space between opposite upstanding sidewall portions and is engaged and mechanically held thereby.