The outer edge of the screw head is a round concave hexagonal shape, this screw is called hexagonal screws, we need special wrenches to fix and remove this type of screws, generally in hardware stores have special hexagonal wrenches for sale, the biggest role of the screw is to play the effect of fixing, and hexagonal screws are mainly used for mechanical fixing, the advantage of this is to more easily fixed, will not play a slip wire The advantage of this is that it is easier to fix and will not have the consequence of slippage, and it is easy to disassemble, this and the hexagonal wrench is mutual cooperation, because the hexagonal wrench is 90 °, disassembly is more energy-saving.

Specifications are generally larger screws is the hexagonal screws or hexagonal screws, we all know that the role of hexagonal screws a lot. No matter how good the fasteners are used for a long time, there is a possibility of loosening. Here we will talk about the use of hexagonal screws will encounter some common problems.

Cylindrical head socket head cap screws

Hexagon socket head screws are used to fasten the role of the machine installed in the often subject to vibration and shaking, so some hexagon socket head screws may be loose. In order to avoid this phenomenon, then we have to use some anti-loosening treatment. There are many ways to prevent loosening.

• more common is to add a suitable spring washer in the middle of the hexagonal screws and workpiece, the role of the spring pad is to increase the pressure through the rebound force, which can be a good way to increase the effect of hexagonal screws to prevent loosening. (Here you can recommend the use of combination screws, easy to install)

• in the hexagonal screw thread tail do resistance to fall point glue, this anti-loosening method is used more in small screws, point on the screw glue viscosity performance is very good, will be very effective adhesion in the thread surface, and the thickness is very thin, and threaded hole tightening can play a good anti-loosening effect.

• if the hexagonal screws are used in places where they do not have to be disassembled, the screws can be installed after the screws are welded in the installation, which can play a very good role in preventing loosening, but the hexagonal screws used in this way can not be disassembled and used again.

Countersunk head socket head screws

Hexagon socket screws installation or removal may encounter the phenomenon of slippage, so what are the reasons for the phenomenon of slippage, how should be handled?

• first confirm whether the hexagon socket screw hexagonal cavity is in line with the standard size, if the hexagonal cavity is too large will cause the phenomenon of slippery head.

• check whether there is a problem with the hexagonal key, some hexagonal keys will have some wear and tear over time, the size may become smaller, so the installation of the slippery head.

• if the hexagonal screw because the screw is too tight to disassemble, you can use a hammer, against the screwdriver to smash it down; or use a strong pliers to clamp the screw, and then slowly screw down.

Summary

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