There are various types, such as L - shaped and J - shaped anchor bolts. L - shaped anchor bolts, also known as bent anchor bolts, are often used to fix structural steel columns, light poles, heavy equipment, etc. J - shaped anchor bolts are threaded on the flat side, and their bent ends are hooked on the steel bars for support, which are usually used to connect walls and concrete foundations. In addition, there are also wedge - shaped, sleeve - type, and chemical anchor bolts, each designed for different application scenarios.