Threaded fastener
Encyclopedia
A threaded fastener is a discrete piece of hardware
that has internal or external screw thread
s. They are usually used for the assembly of multiple parts and facilitate disassembly.
The most common types are the screw
and nut
. Other, more specialized types, include captive threaded fasteners, stud, threaded inserts, and threaded rod
s.
Hardware
Hardware is a general term for equipment such as keys, locks, hinges, latches, handles, wire, chains, plumbing supplies, tools, utensils, cutlery and machine parts. Household hardware is typically sold in hardware stores....
that has internal or external screw thread
Screw thread
A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread...
s. They are usually used for the assembly of multiple parts and facilitate disassembly.
The most common types are the screw
Screw
A screw, or bolt, is a type of fastener characterized by a helical ridge, known as an external thread or just thread, wrapped around a cylinder. Some screw threads are designed to mate with a complementary thread, known as an internal thread, often in the form of a nut or an object that has the...
and nut
Nut (hardware)
A nut is a type of hardware fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten a stack of parts together. The two partners are kept together by a combination of their threads' friction, a slight stretch of the bolt, and compression of the parts...
. Other, more specialized types, include captive threaded fasteners, stud, threaded inserts, and threaded rod
Threaded rod
A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. They are designed to be used in tension...
s.
External References
- "Hold Everything" February 1946, Popular Science page from article describing screw fastener technology developed during World War Two