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.
An acorn nut, also called a crown hex nut, blind nut, cap nut, domed cap nut, or dome nut, is a nut that has a domed end on one side. When used together with a threaded fastener, the domed end encloses the external thread to protect the thread or to protect nearby objects from contact with the thread.
Specifications- Size: 0.25 in.-20
- Height: 0.35 in.
- Width: 0.4 in.
- Length: 0.4 in.