Are you struggling to remove a nut that’s stuck on a bolt? Nuts and bolts are two of the world’s most commonly used fasteners. You can find them in furniture, machinery, building materials, automobiles, aircraft and more.
Nuts and bolts feature opposing threads that allow them to join together. Nuts have a hole in the center lined with interior threads, whereas bolts are solid fasteners with external threads. You can twist a nut onto the end of a bolt to join two or more parts. Nuts can become stuck, however, in which case you may struggle to remove them.
Use the Right Tool
Make sure you are using the right tool remove the stuck nut. Socket wrenches are designed to grip nuts and bolts firmly. They feature a socket — typically a hex socket with six sides — that slides over a nut or bolt. Once in place, turn the socket wrench to loosen and remove the nut.
Alternatively, you can use a box-end wrench to remove the nut. Also known as a ring spanner, it features a closed-loop head. You can place the head over the nut and turn the box-end wrench to remove the nut.
Try Penetrating Fluid
If elbow grease isn’t cutting it, try penetrating oil. Nuts often become stuck due to corrosion or debris. Over time, they can corrode, resulting in small particles of iron oxide coating their exposed surface, or they may attract dirt and dust. When left unchecked, debris such as this can make them difficult to remove.
Penetrating oil offers a solution. This low-viscosity fluid contains solvents that “penetrate” and break down rust and particulate matter. Just spray a small amount where the nut meets the bolt. After allowing it to sit for a few minutes, try to loosen the nut again.
Tap the Nut
Another tip for dealing with a stuck nut is to gently tap it with a hammer. Just take any standard hammer — or even a mallet — and strike the nut on all sides.
As previously mentioned, stuck nuts are often the result of corrosion or debris. By striking the nut with a hammer, you can dislodge the particulate matter that’s holding it in place.
Work It Back and Forth
Don’t focus on turning the wrench in a single direction. Rather, work it back and forth until you are able to loosen and remove it.
Using the back-and-forth method will give you more leverage. You’ll be able to apply more force, which can help to loosen the stuck nut.
