ABSTRACT
This chapter discusses the analysis and design of power screws, threaded fasteners, bolted joints in shear, and permanent connectors such as rivets and weldments. A power screw, sometimes called the linear actuator or translation screw, is in widespread usage in machinery to change angular motion into linear motion, to exert force, and to transmit power. Screws and bolts are the most familiar threaded fastener types. A fastener is classified according to a grade or property class that defines its strength and material. As with the threaded fasteners, rivets exist in great variety. Note that while welding has replaced riveting and bonding to a considerable extent, rivets are customarily employed for certain types of joints. Brazing and soldering differ from welding essentially in that the temperatures are always below the melting point of the parts to be united, but the parts are heated above the melting point of the solder.
