1. Hex Bolt (Hexagonal Head Bolt):
This is one of the most common bolt types featuring a hexagonal head. The six-sided head provides good gripping points for wrenches and sockets, making it easy to tighten or loosen the bolt.
2. Square Head Bolt:
Square head bolts have a square-shaped head. They may be preferred in certain applications where the head needs to be flush or sit close to the surface, such as in woodworking.
3. Round Head Bolt:
These bolts feature a rounded head, which gives them a smooth and finished appearance. They are often used in applications where aesthetics are important, such as in furniture or electronics.
4. Button Head Bolt:
Button head bolts have a rounded, low-profile head. The low height of the head makes them suitable for applications with limited clearance.
5. Socket Head Bolt:
Socket head bolts have a cylindrical head with a hexagonal recess that fits a hex key or an Allen wrench. These bolts offer a more secure grip than slotted or Phillips drive screws, reducing the risk of cam-out.
6. T-Head Bolt:
As the name suggests, these bolts have a T-shaped head with a hole at the end of the crossbar. They are sometimes referred to as "Tee bolts" and are commonly used in situations where they need to be accessed or rotated from the side.
7. Carriage Bolt (Oval or Plow Bolt):
Carriage bolts feature a round or oval head with a square neck underneath. They are designed for use in wood and have a smooth, rounded top that sits flush with the surface.
8. Hanger Bolt:
Hanger bolts have an elongated U-shaped design. They are primarily used for suspending fixtures, pipes, or other objects from ceilings or beams.
9. Mushroom Head Bolt:
Mushroom head bolts, also known as shoulder bolts, have a large, rounded head resembling a mushroom cap. They are often used in applications where gripping the head is essential, such as securing access panels or hatches.
10. Elevator Bolt (Hook Bolt):
Elevator bolts have a curved, hook-shaped head. They are intended to be screwed into wood or other materials to create anchor points or hanging fixtures.
11. Flange Bolt:
Flange bolts have a flange or collar underneath the head. The flange provides additional bearing surface, distributing the load over a larger area.
12. Eye Bolt:
Eye bolts feature a circular loop at the end of the threaded shank. They are commonly used for lifting, securing cables, or attaching ropes.
These are just a few examples of the many bolt types available. Each bolt type has its unique characteristics and is designed to meet specific requirements and applications.