What different types of nuts and washers are there?

There is a wide variety of types of nuts and washers, each tailored to specific uses.

Let’s begin with the different types of nuts:

• Hex nuts: This is the most common type of nut; it has six sides and is tightened or loosened with a wrench.
• Wing nuts: These nuts have two wings, allowing them to be turned by hand.
• Cap nuts: They have a closed top that covers the end of the bolt.
• Lock nuts: They are used to create a secure connection and prevent loosening due to vibration. Typical examples include self-locking nuts and castle nuts.

And here are some types of washers:

• Flat washers: They are the most common washers and ensure even load distribution.
• Spring washers: They prevent the bolt from loosening by providing resistance.
• Hardened washers: These washers are specially hardened and are used in high-load applications.
• Sealing washers: They are lined with rubber and are used to prevent leaks.