What is a hexagonal nut? People who are familiar with nuts know that there are many types of nuts, such as square nuts, round nuts, ring nuts, butterfly nuts, hexagonal nuts, and so on. Then the most common on the market is the hexagonal nuts, then why hexagonal nuts are most commonly used?
1. hexagonal nuts, is the crystallization of the continuous practice of working people in production life
Make the nut into a hexagonal shape, is for the convenience of use. On the machine, the part where the nut is installed is sometimes not wide enough, and the space for the spanner to screw the nut is also quite small. With a hexagonal nut, the spanner only needs to be turned 60 degrees at a time to slowly tighten the nut, whereas with a four-angle nut it needs to be turned 90 degrees at a time. This means that the space required to tighten the nut is smaller with the hexagonal shape, but the octagonal nut is usually rarely used due to the small contact surface between the spanner and it, which can easily slip.
The hexagonal nut is therefore the easiest to use. Look at the spanner again, the shank of the ordinary spanner and the spanner mouth can become 30 degrees of the angle, so that when the installation of the nut is very narrow, the spanner is not free to move, and hexagonal nuts, as long as the spanner will spanner a nut, and then turn the spanner over and wrench the nut again, so back and forth repeatedly several times, you can tighten the nut.
2. the hexagonal nut is made into a hexagonal shape in order to maximise the use of materials
Because from the strength point of view, the large nut to be stronger than the small, and the past nuts are generally milled out of round material, the same a round bar, with it to do hexagonal nuts than to do four corner nuts material utilization rate is high, and with the same thickness of the round bar to do out of the hexagonal nuts, far larger than the four corner nuts to come.
In summary, hexagonal nuts are more convenient to use and increase the material utilisation rate, therefore, they are the most common in the market. Hexagon nuts are used in conjunction with bolts and screws to connect and fasten machine parts. Type 1 hexagonal nuts are the most widely used, grade C nuts are used on machines, equipment or structures with rough surfaces and low requirements for accuracy; grade A and B nuts are used on machines, equipment or structures with smooth surfaces and high requirements for accuracy. 2 hexagonal nuts are thicker and are used on occasions that require frequent assembly and disassembly. The thickness of the thin hexagonal nut is thinner and is mostly used on occasions where the surface space of the connected machine parts is restricted.