Types and uses of 13 different types of mechanical nuts

Types and uses of 13 different types of mechanical nuts
The nuts are mostly hexagonal, followed by square.
Different types of nuts
Cap nut
There are two types of cap nuts. One is low or standard cap nut. The other is a high cap nut. The high cap nut is wider and higher, which can protect the ultra-long stud. There are also self-locking cap nuts with twisted threads in the hexagon area to form a tight friction fit to prevent the nuts from loosening due to vibration.
Barrel nut
2. Barrel nut is also known as cross screw or screw nut. It is made of steel material and is called a special nut. It is often used in aerospace and is also found to meet the purpose of furniture.
These types of nuts mainly have very thin bolt pieces and metal parts, as well as commonly used steel billets or forged parts. Barrel nuts are more popular than standard nuts and bolts because they do not need to process or forge flange plates on the receiving parts. This can reduce your weight.
3. Furniture cross pin barrel nut
Furniture cross pin barrel nut, which is designed to be similar to the shape of a cylinder, is specially used for bolts in furniture as a connector to connect two pieces of wood. The threaded hole inside the nut is the most common, which can pass through both sides of the board.
During the installation process, it is necessary to align two pieces of wood and connect them, and then drill the bolt hole through one piece of wood and into another piece of wood. Barrel nuts are also common in paperback furniture. Long bolts and barrel nuts are used to fix T-joints.
4. Cage nut
Cage nuts are also commonly referred to as captive or clip nuts. They consist of square nuts in spring steel cages and are wrapped around nuts. Whenever loosening is found, they are responsible for fixing the nut at a specific position behind the hole. Cage nuts were used in 1952 and 1953. The cage nut is designed to require an insertion tool to install the cage nut into the hole. The newer design also has the function of extrusion and release, which can realize toolless installation.
Square hole cage nuts are technically known as nuts that can be easily used in all places where square holes are found and punched according to their needs. This is an old captive nut. It uses a spring clip, which can usually fix the nut and slide on the edge of the sheet.
The application of this nut is usually in a slightly loose cage, allowing minor adjustment in its alignment. This is responsible for reducing the possibility of thread peeling during equipment installation and removal. The size of the spring steel clamp is responsible for determining the thickness of the panel where the nut is clamped. In this case, the size of the clip is mainly determined by the distance between the panel edge and the hole.
5. Clip nut
Clamping nut refers to a kind of metal plate nut or speed nut. The clip nut is called a specially designed nut, which can be clamped on the metal plate. These are the most common types of captive nuts consisting of cage nuts.
Type of clip nut: clip nut is the most common type, which has many forms based on where they are clamped, shape and thread type. Each clamp nut is perfectly designed and even suitable for small range of metal plate measuring tools. It is worth noting that these types of clips are made of spring steel.
a) G nut
b) J-nut
J-nut refers to the nut found clamped on the edge of the metal plate. This type of nut is named in this way because its shape is a letter J, where the thread is found on the longer side of “J”. The short fixed leg does not allow more floating, which is considered to be the cause of dislocation, and the nut is found to be able to freely release the clip of the metal plate.
c) Square nut
The square clamp nut refers to the nut with square hole or groove edge, but it is not suitable for clamping on the edge of the metal plate. It is also called a square nut. It has a metal plate holder that protrudes from both sides of the nut. These feet form “lips”, which usually catch the metal object. Before the nut is tightened, you will be able to observe that it floats in the hole or groove. Only when the nut is completely tightened, it will press the outer lip of the retainer to fix itself in the required position.
d) U-nut
U-type nuts have the same characteristics as J-type nuts, but their feet seem to be the same length. This helps to retain the clip, which is usually formed on the unthreaded leg. It is responsible for helping the nut enter the unscrewed position. The threads found in these types of nuts are technically the same as those found in the speed nut style. It may be combined with the nut, or other main parts may be found, which is usually called tapping.
Among the U-nut types, there are standard version and wide plate version, which is generally known to us. The standard version has a solid hinge part, while the wide plate version has a longer hinge and the cutting of the center part, making it easier to install.
6. Coupling nut
The coupling nut is also known as the extension nut. It is a non-other fastener. It is fully threaded to connect two external threads, the most common is a threaded rod. There is usually a hexagon on the outside of the fastener so that the wrench can hold it freely. There are some changes, usually including reducing the coupling nut, which is used to connect two threads of different sizes. It is found that there is a viewing hole for observing the total engagement of the left hand thread found with the coupling nut. (Type of coupling)
These nuts are found to be used for rod assemblies that grow from shorter rod assemblies. The rod is also connected with the coupling nut by thread only at a specific distance.
The coupling nut was found to be used to tighten the rod assembly inward or press the rod assembly outward. Coupling nut is one of the commonly used nuts, which is used to make bearings and seal pull rods at home or press at home. Compared with the standard nut, the main advantage of coupling nut in this application is that there are more threads in terms of its length, which can be observed to participate with the bolt. This is the reason that allows you to spread the force to more threads, which is responsible for reducing the possibility of peeling or biting threads due to the impact of heavy loads.
7. Flange nut
Flange nut refers to a nut with a very wide flange at one end, which is usually used as an integrated washer. Its function is to distribute the pressure of the nut on the fixed part, or reduce the chance of damage to the part, so that it is not easy to loosen due to the uneven fastening surface. Flange nuts are those nuts that usually appear in hexagonal geometry. They are also composed of hardened steel and zinc coating.
It can be seen that the flange is serrated to provide any form of locking action. Pay attention to the serrated flange nut. It must be said that the serrated flange nut is particularly angular. They keep the nut away from the direction of rotation. These serrations cannot be used with washers, nor can they be used on any such surface without being scratched. The serration helps prevent the vibration of the nut from moving the fastener. This is the reason for maintaining the actual retention force of any type of nut.
The flange nut is equipped with a rotating flange, which is responsible for providing more stability to the structure and does not affect the finish machining of the product, which is similar to the serrated flange nut. Rotating flange nuts are the most commonly used applications for connecting materials, such as wood and plastic.
8. Self-adjusting nut
Self-adjusting nut is also known as spherical nut or leveling nut. It is one of the nuts of this type. Its application is mainly found where all fasteners are not set at an angle perpendicular to the anchor surface of the nut. These are commonly used in aerospace and other industries. If these are changed nut types, they will be replaced with any other type.
9. Plug-in nut
Plug-in nut refers to the nut that provides a socket. The socket should be fully threaded to solve all purposes of wooden workpiece, which seems similar to wall anchor. The plug-in nut is found to be inserted into the pre-drilled hole, either by screwing in or hammering in. In both cases, the external protrusion was observed to bite inside the wood, directly or indirectly responsible for preventing the nut from turning or pulling out.
Compared with other nuts, plug-in nuts have their advantages, such as barrel nuts or T-nuts, because they are known nuts that can be installed from any side of the workpiece.
10. Knurled nut
Knurled nut refers to the nut with knurled outside the surface. This is why the nut can be tightened with bare hands, and the nut can be fixed to the handle or cover.
Knurled nuts are those commonly used in applications where any of these fasteners will not be permanently placed, which means that they will be removed within a fixed time interval and do not require any structural support. These are the most common types of nuts, which are used in switchboard covers, precision measuring tools, squares and service covers. The main advantage of using knurled fasteners is that it will help improve the convenience of disassembly and reduce the possibility of over-tightening, which may not require any tools to manipulate the fasteners.
11. Split nut
Split nut refers to a nut that is longitudinally divided into two different opposite parts, so that the internal thread part can be opened, and can also be closed on the external thread of the bolt or the leading screw.
This feature allows the nut to move along the screw only when it is opened, without turning the screw, and vice versa. Once the nut is closed, it will resume the normal movement of the nut on the screw. This will include axial rotation.
There is a split nut assembly, which is usually used for its positioning system. For example, the best example can be the guide screw of the lathe. This is one of the best machine components, which will definitely make single-point thread practical on manual and non-NC lathes. Normally, the screw and nut are also coated with oil to complete the lubrication process. These are all types of regulations that extend the service life of threads by reducing wear.
12. Square nut
The square nut refers to the nut pattern designed as a very unusual quadrilateral. Referring to the comparison with standard hexagon nuts, these nuts have a larger contact surface with the tightened parts, thus providing greater resistance in terms of loosening or tightening resistance. Unlike other nuts, these nuts are unlikely to become round once loosened or tightened. The square nut is one of the typical bolts matched with the square head face. These nuts were found to be used with flat washers to avoid damage from sharp edges.
13. T-groove nut
T-groove nut refers to the nut usually used with threaded parts to locate and fix the workpiece working in different workshops. T-groove nut is a nut that slides with T-groove rail, which is set in the workbench or band saw. T-groove nut is applied with T-groove structural frame to construct various industrial structures and machines.
Compared with T-groove nut or hexagon head screw, T-groove bolt has higher strength.