Countersunk Head Square Neck Fully Threaded Hex Bolt With Split Pin Hole Exporters

In the installation and use of bolts, the performance requirements of materials and the design standards of technical specifications need a lot of research and development and testing before they can be installed on the equipment. When all technical conditions are met, if there is a mistake in the last step of the installation process, it will fall short of success[Fully Threaded Hex Bolt Exporters]. Let's take a look at what misunderstandings are easy to occur in the connection process of bolts.

Misunderstanding 1

We know that bolts are divided into coarse teeth and fine teeth. Although there are not too many fine teeth in daily use, the standard design of fine teeth must have special performance requirements. It is really difficult to find spot fine-tooth bolts in the market. [Countersunk Head Square Neck Bolt]Some enterprises design fine-tooth bolts in the installation and use of equipment. Because fine-tooth bolts are not easy to buy, they will be replaced by coarse tooth bolts. This is a way that can't be taken. Although the thread diameter of a fine thread bolt is the same, its anti-loosening and sealing performance are very different from that of a coarse thread bolt, so the two kinds can not be used interchangeably.

Misunderstanding 2

When using Round Head Bolts for equipment maintenance, take out the original bolts and replace them with new ones. Due to some operational reasons, bolts of the same size are difficult to pass through the original screw holes. It is convenient to install them only by removing many other parts of the equipment. To save things, replace the original bolt specifications with a smaller one. This is also absolutely impossible. Round Head Bolts of different thicknesses have different torque parameters for the equipment. If they are not used properly, the bolts will break in the later stage and cause some accidents. Therefore, do not use small bolts for convenience. Even if the whole equipment is to be disassembled and rebuilt, it is necessary to replace the Round Head Bolts of the same size as the original specification.[Hex Bolt With Split Pin Hole]

Misunderstanding 3

Some equipment has been in motion. To prevent Hex Head Bolts and nuts from loosening, nuts thicker than the original design standard will be used for replacement. It is thought that the thicker the nut, the better the anti-loosening will be. This is a big mistake. When the internal thread of the nut and the bolt are locked, not every circle of thread is under stress. Which thread has a smaller diameter, its locking mainly depends on this circle or two circles of threads with a smaller diameter to prevent looseness. The thicker the nut, the more vacant threads, which is not good.

Misunderstanding 4

In some other environments, after threading the Hex Head Bolt, it is found that the thread is a little too long. To look better, multiple washers will be installed in front of the nut. This is also a serious misunderstanding. The more washers are added, the worse the anti-loosening effect will be. We can lock it directly with two nuts, which will be much better than adding washers. What's more, it's wrong to replace the gasket with an enlarged gasket because it is used, thinking that this will increase the contact area and have a better anti-loosening effect. The larger the gasket, its anti-loosening effect will be worse than the standard gasket in the process of vibration, so it also depends on the design requirements.

Misunderstanding 5

When the bolt and nut are matched, it is thought that the tighter they are tightened, the better. Sometimes, if they are not careful, the torque will be close to the critical point of the bolt torque parameters. As time goes by, service fatigue will occur, and then the fracture will occur. Therefore, during the installation process, the tighter the better, so how should it be controlled? We can use a torque wrench to operate during installation, which is well-grounded and not afraid of mistakes. The use of a torque wrench can also prevent false locking. What false locking? There are stains on the threads of some nuts or Hex Head Bolts. During rotation, due to the cleaning of the dirt, it will not be able to screw. At this time, many people will think it is tightened. It is only the stain that hinders the forward movement of the threads. The nuts and bolts are not compressed. When the support is in motion, it is easy to loosen.

Countersunk Head Square Neck Fully Threaded Hex Bolt With Split Pin Hole Exporters, you can get them at a good price if you have a large quantity.