According to the force method of connection: Common and […]
According to the force method of connection:
Common and hinged holes. Popular mainly load-bearing axial force, but also can bear the requirements of the lateral force is not high. The bolts for reaming must be the same as the size of the hole to be applied to the lateral force.
By head shape:
Six headed, round head, square head, countersunk head and so on. Six horns are the most common. The ordinary countersunk head is used in a place where the appearance of lubrication is not raised after the connection, because the countersunk head can be screwed into the parts. The round head can also be screwed into the parts. With the tightening force can be bigger, but the large size. In order to satisfy the requirement of locking the device, there are holes in the head and holes in the rod. The holes can not loosen the bolts when they vibrate. Some bolts are not thread rod to do fine, called slender waist bolt. This kind of bolt is conducive to the combination of forces. The steel structure is made of special high strength bolts, the head will be bigger and the size will be changed. There are other special uses: T groove bolts, machine tool fixture with the most, extraordinary appearance, the two sides of the head should be cut off. The anchor bolt is used for mechanical and ground connection and fixed, and has a plurality of shapes. U shaped bolts, as described above. Wait。 There are special studs for welding. One end has thread, one does not. It can be welded on the parts, and the other side is screwed directly.
A bolt English dubbed U-bolt, length of specification, the shape is U shaped so called U type bolt and nut, threaded connection, mainly used for fixed tubular objects such as pipes or sheet material such as automobile leaf spring, because the method of fixing object like people on horseback, so called horse bolts.http://www.lwhardware.com/