What are the nuts: varieties, scope

A nut is a fastener that comes in many varieties. They differ not only in shape and strength class, but also in the field of application. Let's consider its main types and figure out where they are used.

Nut - main varieties

A nut is a fairly common fastener, without which almost no device or structure can do. It can be found in an ordinary children's toy car, as well as in complex architectural structures. So what are the main types of nuts?

Hexagonal

The most commonly used and demanded nut. It is used almost everywhere. As the name implies, it has the shape of a hexagon for easy grip with a wrench. It can be made in different sizes, depending on the method and place of use.

Flange hex

A kind of hybrid of a hex nut and washer. On one side, there is the threaded nut itself, and on the other, a flange, which can be smooth or corrugated. The flange allows you to tightly and reliably fix the flat surface, and the notch on the flange prevents the fasteners from self-loosening. The product in question under certain conditions can serve as an alternative to such hardware as spring engravers, various lock washers and others.

Round with a slot at the end

The fastener is a cylindrical product with a hole and an internal thread (metric), on the outside there are an even number of special slots - slots. They are designed to provide torque when using tools - a screwdriver or a spanner wrench.

Slotted (crown)

Fastener with six faces. A feature of the product is the presence of spline slots, which outwardly are very similar to the crown and also have threads. It is used for a very strong fastening and to prevent the slightest vibration of the connection.

Square

Square nuts can be classified as special, they are used as countersunk nuts. Four edges are more resistant to twisting than six. They are often used in places where access is difficult, for example, on the body of a car. The product is secured with a special casing.

Cap-type

Hex nut with metric thread, spherical end face and tapped blind hole. The scope of its application is quite diverse: from mechanical engineering to construction. However, most often the cap nut is used as a decoration. For example, when you need to cover sharp objects or protruding bolts.

Wing nut

This nut has peculiar protruding rectangular or rounded elements, symmetrically located. No tools are needed to screw in this fastener, since everything happens in manual mode. It is used where fast fastening is required, but at the same time it is necessary to take into account the load, since this type of nut does not withstand significant vibrations.

Eye nut

Refers to rigging and cargo fasteners. A ring is provided in the eye nut, which is designed to grip the elements of parts, finished products, machine tools, beds during assembly, movement, transportation, re-equipment. It is used in many areas: mechanical engineering, shipbuilding, construction, medicine, food production.

Self-locking locknut

This fastener has a rolled synthetic liner. Thanks to this, it reliably self-fixes, and when the fastening is loosened under the influence of dynamic loads, vibrations do not unscrew itself. This is especially true for vehicles and conveyor lines.

Connecting for studs

It also has other names - clutch, elongated nut. This is a hex fastener with an internal hole in which the threads are cut. It differs from the rest in its length. It is used for structural connection of threaded parts of bolts, studs, etc. in mechanical engineering, instrument making and construction as connection parts.

Furniture

A highly specialized nut used in the manufacture of furniture structures. Its appearance in the variety of building fasteners is due to the peculiarities of wooden elements, from which furniture is mainly produced.

Secret

It looks like a barrel with an internal thread. The optimal type of fastener for connecting sheet materials or individual parts of products in cases where the created fastener must to be concealed, as well as for secure and quick flush fixing of mounting parts, such as mounting angles in the groove of a heavy profile.

Vandal-proof

It has another name - tear-off. Its direct function is to protect against theft and breakdown. After installing and tightening the nut, the lower part of the product is cut off and only a smooth remains on the bolt or screw its cone-shaped part, which excludes the possibility of unscrewing without using a special tool. It is used in advertising (advertising stands in elevators, on the streets), door and safe locks, in furniture for public places (educational institutions, parks, squares) and many other areas of life person.

Welded

A hexagonal piece with a standard female thread and three lugs on the rear end face. It is used in mechanical engineering and in the assembly of car bodies. Typically, such a nut is welded using resistance welding.