Find out what a screw thread is and how it functions. Gain a good understanding of screw threads and the techniques used to cut them in wood and then apply them to any project you want. Part one covers techniques, such as: cutting screw threads on a lathe; using jigs; using hand-held cutter; cutting coarse and fine threads; using commercial tools; making your own alternatives; internal and external screw threads; and international screw thread standards. Part two puts the techniques into practice in specific projects designed to help the reader understand screw threads, their purpose and uses in wood. Projects include: a wooden bolt; a threaded spindle; a screw-top box; and a walking stick joint.