How To Remove A Rusted Screw?
Removing a rusted screw can be a frustrating task, especially when it seems like no amount of force will budge it. But fear not, with a bit of perseverance and the right technique, you can successfully remove that stubborn screw without damaging the surrounding material or injuring yourself.
Preparing the Screw for Removal
To start, it’s essential to prepare the area around the rusted screw. Clean away any dirt or debris with a brush or cloth to ensure you have a clear view of the screw and its condition. If the screw head is filled with rust or gunk, use a small tool or a pin to clear out the slots. This will give your screwdriver a better grip, making it easier to turn the screw.
Techniques for Loosening a Rusted Screw
One effective method is to apply a penetrating oil, such as WD-40, directly to the screw and allow it to sit for several minutes. The oil will seep into the threads and help break down the rust. After applying the penetrating oil, try turning the screw again with a screwdriver. If the screw still doesn’t budge, consider gently tapping the screwdriver with a hammer to help jar the screw loose.
If the penetrating oil and tapping methods do not work, heat can be an excellent alternative. Using a heat gun or a blowtorch, carefully apply heat to the screw for a few seconds. Be cautious not to apply too much heat, as this can damage the surrounding material. The expansion caused by the heat can often break the bond created by the rust, making it easier to remove the screw once it cools down.
Another technique involves the use of a rubber band. Place a wide rubber band flat over the screw head and press the screwdriver down firmly into the rubber band before attempting to turn the screw. The rubber band can provide extra grip and prevent the screwdriver from slipping out of the stripped or rusted slots.
If all else fails, you might need to resort to cutting a new slot in the screw head. Using a rotary tool with a cutting disc, carefully cut a straight groove into the screw head. This new groove can provide a better grip for the screwdriver, allowing you to turn and remove the screw more effectively.
In extreme cases, when the screw is severely rusted and none of the above methods work, you may need to use a screw extractor. A screw extractor is a specialised tool designed to remove damaged or rusted screws. Drill a small hole in the centre of the screw head, insert the extractor, and turn it counterclockwise. The threads on the extractor will grip the inside of the drilled hole and help pull the screw out.