type of fastener with a threaded hole
AI overview
A nut is a small metal piece with a threaded hole inside that screws onto a bolt to hold things together. Nuts are essential fasteners used in countless applications, from machinery and construction to everyday items, because they provide a simple and reliable way to join and secure materials.
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Article
An M4 nut threaded onto an Allen key socket head screw A nut is a type of fastener with a threaded hole. Nuts are almost always used in conjunction with a mating bolt to fasten multiple parts together. The two partners are kept together by a combination of their threads' friction with slight elastic deformation, a slight stretching of the bolt, and compression of the parts to be held together.
In applications where vibration or rotation may work a nut loose, various locking mechanisms may be employed: lock washers, jam nuts, eccentric double nuts, specialist adhesive thread-locking fluid such as Loctite, safety pins (split pins) or lockwire in conjunction with castellated nuts, nylon inserts (nyloc nut), or slightly oval-shaped threads.