What are the types of bolts

1. A fully threaded bolt is a fastener with a thread that extends completely to the entire length of the bolt, capable of connecting two or more objects together and securing them by tightening the nut.

2. Partially threaded bolts are bolts that only cover the thread on a portion of the length of the bolt. Usually, the threaded part is used to match the nut to secure the item, while the other end is a smooth handle to provide strength and support.

3. Screw: A screw is a long bolt with threads, usually used to connect very thick components. Its length is long, aimed at ensuring the strength and stability of the connection.

4. U-shaped bolt is a type of bolt that is U-shaped, with one end fixed to an object and the other end used to connect components to provide stable support.

5. Anchor bolts are bolts used to fix objects in concrete or brick walls. They are fixed in the substrate through bolts and connected to the components that need to be fixed using nuts or other fasteners.

6. Shoulder bolt is a special bolt with a shoulder extension, which not only provides support and positioning, but also facilitates the installation and fixation of the bolt.

In addition, there are many other bolts with special shapes and designs, such as gusset bolts, retaining ring bolts, block bolts, etc. They have special functions and uses in specific applications.