Sturdfix Heavy Hex Nut

Heavy hex nut (is6623-ansi-b18.2.2-astm a-194)--
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, specialist adhesive thread-locking fluid such as locktile, safety pins (split pins) or lockwire in conjunction with castellated nuts, nylon inserts (nyloc nuts), or slightly oval-shaped threads.