Washers and bolts are essential to the construction of any structure, large or small. Because of this, it’s easy to forget that there are different types of these items that come in handy in specific situations. The most common washers and bolts include carriage bolts, lag bolts, wood screws, wood washers and machine screws, but they also exist in many different sizes and dimensions depending on your needs. To find out what kinds of washers and bolts you should be using in your projects today, keep reading below!

1) Flat Washer

2) Lock Washer

3) Split Locking Washer

4) Rivet Nut Bolt

5) Hex Head Bolt

The most common type of bolt is the hex head bolt. It has a hexagonal head that screws into a matching nut. Unlike other types, it can be tightened with a wrench or screwdriver. 6) Set Screw Nut Bolt 

7) Cotter Pin Bolt

There are many different types of nuts available, but they all do essentially the same job: hold things together securely. 

The most common type is a hex head bolt which has six points on the end of it that can be turned with an Allen wrench or similar tool. A bolt is typically used in a situation where something needs to be attached or held tightly for long periods of time; this is typically seen with large projects like bridges or houses. 

Bolts are also frequently used in automotive applications because tightening down a bolt allows you to create a firm seal between two parts (such as an engine block and engine head).

The three most common types of nuts are hex, square, and wing. Hex nuts are used on threaded rods with hexagonal sockets in the head, while square nuts have a flat head that is typically tightened by a wrench. 

Wing nuts have wings that are turned for tightening the nut (usually on round bars). These can be easily tightened or loosened with one hand. The type of bolt you will need depends on the size and materials being fastened together as well as what type it is going through.

For example, if you want to attach a metal surface to another metal surface, then you would need a steel bolt because they're stronger than other materials like plastic or wood. Steel bolts also come in different sizes depending on the weight they can support.

A rivet is a metal fastener with a head on one end and a shaft on the other. The head has one or more sharp edges that can be hammered onto materials such as metal sheets or pipes. When the rivet shaft is hammered, it spreads open the two pieces being fastened together and leaves behind what is called a riveted joint.

The hexagonal shape also means that you can tighten from any direction, unlike Phillips or slot screws where you need to tighten from one side only. This is convenient for people who work with furniture or other objects that have an irregular shape.

This type is commonly used for wood projects such as chairs or tables because it has a flat bottom that provides stability for the object it is attached to. A Phillips head is also quite common due to its cross-shaped design that helps with tightening the bolt or screw by providing leverage during installation process.