Type of nut

Nuts mainly refer to parts with internal threads cut in the internal hole

1. Hexagon nuts, which are hexagonal in shape, can be divided into ordinary nuts and national standard nuts according to the width and thickness of the opposite side, and can be divided into ordinary machine manufacturing and machine manufacturing according to different machine equipment.

2. The welded nut is the nut used for welding the convex part on the support surface to the steel plate.

3. Hexagon cap nut refers to the nut with cap shape at the end and top without exposing the external thread

4. Slotted nuts, including slotted nuts with grooves on the hexagon nuts and the cylindrical part above the nuts

5. Lock nut refers to the nut with locking function locally. There are nuts that add nylon and nuts that deform the distance between opposite sides, so they are also called nylon locknuts.

6. Anti-theft nut, which is formed by cold pier at one time, does not need secondary processing, and its surface is hot-dip galvanized. The internal thread is provided with a pair of grooves with an arc section, and its radial depth is gradually increased against the direction of the thread. The two grooves are equipped with two balls and special plastic inner bushings and plastic washers to ensure that the ball can move freely, thus playing a role in anti-theft. This type of anti-theft nut has been widely used in national power tower and signal tower. It is easy to operate and has strong anti-theft effect. The cost of hot galvanizing is higher than that of electric galvanizing, so the cost of the overall anti-theft nut is also greatly increased. It is also divided into: single-bead anti-theft nut and double-bead anti-theft nut, thin anti-theft nut and thickened anti-theft nut.

7. Flange nut "The size and thread specification of flange nut and general hexagon nut are basically the same, but compared with hexagon nut, it is an integral gasket and nut, and there are anti-slip tooth patterns below, which increases the surface area contact between the nut and the workpiece, and the flange bolt is matched with it.

In short, there are many kinds of nuts, which can be divided into 4.8, 8.8, 10.9 and 12.9 according to the strength grade of the material. The above seven kinds are the introduction of several kinds of nuts that are often sold in the Yongnian market, and the nuts with large sales volume, as well as the nuts with a wide range of uses.