Good looking hardware like finishing is essential for all fine furniture projects. Good hardware is also necessary for everyday DIY projects. Even a screw is important; it is best to learn more about the types of hardware available and their use.
Types of Screws
There are a huge variety of fasteners for different jobs. It is a big job deciding on the right kind of fastener or screw and then finding it. Here is a pictorial guide I found on the internet.