If you ask what is the single thing that is most affected by rust and corrosion, the unanimous answer would be nuts and bolts. Sometimes, they are so stuck and seized in place that it becomes difficult to even move them.  Rust and corrosion in bolts and nuts can lead to the failure of the entire component. Therefore, it’s important to address the issue of rust promptly before the damage is done.

Removing a Rusted Fastener

When bolts and nuts are exposed to humid weather or moisture for a long period of time, they will rust quickly. One component that is most affected by rust is fasteners, commonly found in automobile components and home appliances. Moisture can lead to the degradation of the fasteners which makes the devices on the verge of a collapse. It is difficult to remove these stuck fasteners especially if the metal head or the threads are affected by rust, which makes it hard to grip them using a screwdriver or a wrench.

Removing rusted fasteners can be done in a number of ways. Here are the ones that are most commonly used and are most effective.


In a situation where the rust has reached the threads of the fastener, then there is no better way to loosen it than using WD-40 penetrant spray. Apply it to the bolt and then tap it using a hammer. This will help the WD-40 penetrant spray to penetrate the fitting and loosen the bolt so that it can removed easily.


If the fastener is so severely rusted that it cannot be salvaged, the only option left is to cut it out, which will make it unusable but will help you get rid of it. You can use a clamp to get a good grip on the fastener’s head and twist it hard so it can be freed from its position.


Another method to loosen rusted fasteners, nuts and bolts is to use a heat torch on low or moderate heat. Heat will allow the rusted nuts and bolts to expand enough that they can be loosened. It is, however, important to be very careful with this method. Many lubricants are flammable and can ignite if exposed to flame.

Tried and Tested Methods for Rust Removal

While it is possible to get rid of the rusted fastener and replace it with a new one, this option is not available in all cases. There are many old machines and parts whose nuts and bolts cannot be replaced with new ones. In these cases, you need to restore the nuts and bolts using rust removal techniques:


This is an inexpensive and a relatively simple method but it can be very time consuming.

Hydrogen Peroxide:

Applying hydrogen peroxide is also an effective method to remove rust from nuts and bolts. Hydrogen peroxide dissolves rust. Scouring it with a hard brush will help you get rid of all the rust left on the nuts and bolts. This is also an inexpensive method of treating rust but can leave residual rust spots behind.


Coating the nuts and screws with paint can also prevent them from rusting. Remove rust from the nuts and bolts before coating them in paint that keeps them safe from moisture. A wax-based or oil-based coating can also help in preventing rust from building up on the nuts and screws again.

Rust Cleaner:

Getting rid of rust from nuts and screws and loosening the stuck ones can be an arduous task. If you looking for the best lubricant to make the task easy for you, then nothing beats WD-40 penetrant spray.

It is a fast acting, powerful and quickly penetrating spray that goes to the hard-to-reach areas and loosens stuck and seized fixings, as well as any rusted moving parts. It is water resistant, thus keeps moisture at bay, keeping your nuts and bolts secure from future rusting and corrosion.

All you need to do is spray the rusted and seized nuts and bolts with it. It will then work its magic in loosening them up!  Check out this video: