Dealing with a broken screw can be incredibly frustrating, leaving you feeling stuck and unable to complete a task. Whether it’s a stripped head, a snapped shaft, or a stubborn screw refusing to budge, a broken screw can quickly derail your project. Fortunately, there are several effective methods to unscrew broken screws, allowing you to overcome this common obstacle.
Overview
This guide will walk you through various techniques for removing broken screws, from simple solutions to more advanced methods. We’ll explore the tools you’ll need, the steps involved in each technique, and important safety precautions to keep in mind.
Understanding the Problem
Before attempting to remove a broken screw, it’s crucial to identify the type of damage. Is the head stripped, the shaft broken, or is the screw simply rusted in place? Understanding the specific problem will help you choose the most appropriate removal method.
How To Unscrew a Broken Screw
A broken screw can be a frustrating experience, but don’t despair! There are several methods you can use to remove it, depending on the severity of the break and the type of screw.
Assessing the Damage
Before you begin, it’s important to assess the damage.
Types of Broken Screws
Head Stripped: The head of the screw is rounded or damaged, making it difficult to grip with a screwdriver.
Shaft Broken: The screw shaft has snapped off, leaving the head protruding.
Completely Broken: Both the head and shaft are broken off.
Tools You Might Need
Screwdriver (various sizes)
Drill
Screwdriver bits (various sizes)
Hammer
Center punch
Vise grips
Screw extractor kit
Methods for Removing a Broken Screw
Here are some common methods for removing broken screws:
1. Using a Screwdriver
If the screw head is only slightly stripped, you may be able to remove it with a screwdriver. Try using a larger screwdriver than usual, or a rubber band or piece of tape to increase grip.
Apply firm, even pressure to the screwdriver, and try to turn the screw counterclockwise. If the screwdriver slips, try a different size or type of screwdriver.
2. Drilling a Pilot Hole
If the screw head is too damaged to grip, you can try drilling a pilot hole into the center of the head.
Use a drill bit slightly smaller than the diameter of the screw shaft. Once the pilot hole is drilled, you can try using a screwdriver or a screw extractor to remove the screw.
3. Using a Screw Extractor
A screw extractor is a specialized tool designed to remove broken screws.
It consists of a drill bit with a helical cutting edge. You drill a pilot hole into the broken screw head, then insert the screw extractor and turn it clockwise. The extractor will grip the broken screw and allow you to remove it.
4. Using Vise Grips
If the screw shaft is broken off, you can try using vise grips to grip the remaining shaft and turn it counterclockwise.
Be careful not to damage the surrounding material when using vise grips.
5. Using a Hammer and Punch
If all else fails, you can try using a hammer and center punch to drive the broken screw out of the hole.
Place the center punch on the head of the broken screw and strike it with a hammer. This will create a small indentation in the head, which you can then use to grip with a screwdriver or pliers.
Remember to always wear safety glasses when working with power tools.
Dealing with a broken screw can be frustrating, but it doesn’t have to mean a trip to the hardware store for a replacement. As we’ve explored, there are several effective methods to unscrew a broken screw, each tailored to different situations.
From using penetrating oil and a rubber band to employing specialized tools like a screw extractor or a Dremel, the key is to assess the severity of the break and choose the most appropriate technique. Remember to always proceed with caution, using the right tools and applying gentle pressure to avoid further damage.
By following the tips and tricks outlined in this article, you can confidently tackle those stubborn broken screws and get your projects back on track.
Frequently Asked Questions: How to Unscrew a Broken Screw
What if the screw head is stripped?
If the screw head is stripped, try using a rubber band or a piece of tape to create more friction between the screwdriver and the screw head. You can also try using a screw extractor, which is a tool designed to remove broken screws.
Can I use pliers to remove a broken screw?
Using pliers can work in some cases, but it’s important to be careful not to damage the surrounding material. Grip the screw head as close to the surface as possible and twist gently. If the screw doesn’t budge, try using a penetrating oil like WD-40 to loosen it first.
What if the screw is broken off flush with the surface?
For screws broken off flush, you can try drilling a small pilot hole into the center of the screw head. Then, use a screw extractor or a small, sharp chisel to carefully remove the broken screw.
What is a screw extractor and how do I use it?
A screw extractor is a tool with a spiral flute that grabs onto the broken screw. It’s inserted into the hole and then twisted counterclockwise to remove the screw. Make sure to use the correct size extractor for your screw.
Are there any other tips for removing broken screws?
Yes! Apply heat to the screw head with a hairdryer or heat gun to expand the metal and make it easier to remove. Also, use a lubricant like WD-40 to help loosen the screw. Patience and persistence are key when dealing with broken screws.
