A threaded fastener is a discrete piece of hardware that has internal or external screw threads. It falls into the overall fastener family. They are usually used for the assembly of multiple parts and facilitate disassembly.
- Groover, Mikell P. (2010), Fundamentals of Modern Manufacturing: Materials, Processes, and Systems (4th ed.), John Wiley and Sons, p. 767, ISBN 978-0-470-46700-8.
- "Hold Everything" February 1946, Popular Science page from article describing screw fastener technology developed during World War Two