Abstract: An improved arrangement for driving threaded screw fasteners both manually and automatically utilizes mating conformations in the fastener head and driver including a central, preferably conical, depression in the head and a complementally shaped central projection extending from the driving tool. Further, the head is formed with slots, less deep than the depression, which open both at the depression and at the outer margins of the head. The driver is formed with corresponding blade sections.The central projection and depression are formed such that force along axis of the driver toward the head and rotational force about the driver axis tend to force the fastener axis to alignment with the driver axis.

Abstract: A display package for small, high value objects such as gem stones utilizes a double sided adhesive insert between a pair of cover members each of which is bonded to a respectively associated one of the adhesive sides of the insert. The article to be displayed is sandwiched between window elements, and in some forms cushion and background elements which are themselves bonded to respectively associated adhesive sides of the insert.