What are the different types of nuts and bolts?

Nuts and bolts come in various types and sizes, each designed for specific applications. Here are some common types:

1. Hex Head Bolts: These have a hexagonal head and are tightened or loosened using a wrench or socket. They come in different grades of strength.

2. Hex Nuts: These are used in conjunction with hex head bolts and have a six-sided shape with internal threads to match the bolt.

3. Machine Screws and Nuts: These are finer-threaded screws used with nuts or threaded holes in metal or other materials. They come in various head types such as flat, round, pan, and oval.

4. Socket Head Cap Screws: These have a cylindrical head with a hexagonal recess and are tightened using an Allen key or hex wrench.

5. Washers: While not technically nuts or bolts, washers are often used in conjunction with them. They distribute the load and provide a smooth surface for the nut or bolt head to bear against, reducing friction and preventing loosening.

6. Carriage Bolts and Nuts: Carriage bolts have a smooth, dome-shaped head and a square section under the head to prevent rotation when tightened. They are often used in wood applications.

7. Eye Bolts and Nuts: These bolts have a looped head and are used for attaching cables or chains.

8. Lag Bolts: Also known as lag screws, these are heavy-duty wood screws with a hex head.

9. Toggle Bolts: These bolts consist of a bolt and a spring-loaded wing nut that opens up behind the surface material for secure anchoring in hollow walls.

10. Anchor Bolts: These bolts are embedded in concrete or masonry to secure structures or equipment.

11. U-Bolts: These bolts have a U-shaped cross-section and are used to clamp pipes, rods, or tubes.

12. J-Bolts: These bolts have a J-shaped end and are used for anchoring structures into concrete.

13. T-Bolts: These bolts have a T-shaped head and are often used in conjunction with T-slotted framing systems.

14. Flange Bolts: These bolts have a flange under the head which distributes the load and eliminates the need for a washer.

15. Stud Bolts: These are bolts without a head, threaded at both ends, and are used in applications where a nut is required on both ends.

These are just some of the many types of nuts, bolts, screws, and fasteners available, each suited to specific tasks and materials.