![]() ![]() ![]() Nuts of forms other than the above two are usually provided with special facilities for screwing them on or off the bolts. ![]() An octagonal nut would require only turn, but there would be greater tendency for the spanner to slip. Hence, it is more convenient to screw-on a hexagonal nut than a square nut. The spanner used for turning the nut can have better hold on a square nut than on a hexagonal nut, but the angle through which the spanner will have to be turned to get another hold is only 60° in case of a hexagonal shape, while it is 90° in case of a square shape. Hexagonal nuts are generally used in most of the applications. Other forms are also used to suit specific requirements. Nuts are generally in the form of hexagonal or square prisms. A nut is an internally threaded component joined to the externally threaded bolt.Ī nut and a screw or a bolt comprise what is known as a screw pair. ![]()
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