The allen bolt is round. There are many kinds of hexagon socket bolts. It is divided into carbon steel and stainless steel according to material. Hexagon socket head screws, also known as half round head hexagon socket head screws. The countersunk hexagon bolt has flat head and hexagon. Another kind of special bolt is called headless hexagon bolt, namely machine screw, stop screw and stop screw. The common name of headless hexagon bolt, but the meaning is the same. Of course, there are some flower shaped hexagonal socket screws, but they are rarely used and will not appear in the market. Hexagon socket bolts are usually used in machinery. The utility model has the characteristics of compact structure, dismountable, and not easy to slide. Spanners are usually bent 90 degrees. One end is long and the other end is short. When using screws, grasp them by hand. The long side can save a lot of force and fasten the screws better. The long head has a round head and a flat head. The screw hole can be easily inserted into the round head for easy removal. The manufacturing cost of the outer hexagon is much lower than that of the inner hexagon. The other screw head is thinner than the hexagon socket, and the hexagon socket cannot be used in some places. In addition, for machines with low cost, low power strength and low accuracy requirements, there are fewer hexagon socket bolts than hexagon socket bolts. Do you know how to deal with the sliding wire of hexagon bolt? The following is a simple understanding. Hexagonal screws and hexagonal screws can not be removed. If you want to slide the screws out, generally try three solutions:.
1. Try to take it out with “bad screw extractor”.
2. Use an alloy drill bit that is smaller than the sliding hexagon bolt to slide the screw. If the screw is drilled out, there will be a wall residue around, so slowly remove it.
3. It can be treated with electric spark. If the socket head bolt is not easy to move, try the portable spark machine. Removal of the hexagon bolt by the above method may damage the internal threaded hole of the original threaded hole:.
4. If the damage is not serious, the standard tap with corresponding thread specifications can still be used normally after a period of time.
5. If the damage is serious, the “steel wire insert” can be further used for repair on the premise that the wall thickness around the threaded hole is allowed. The “steel thread insert” is used for maintenance, and the strength is not affected, even greater than the strength of the original thread. The hexagon bolt of the original specification is still used.