Who hasn’t had the experience of tightening a screw too tightly and snapping it off, and then not being able to remove the snapped screw? This is a common issue that can be frustrating and time-consuming to fix. However, there are a few simple techniques that can be used to remove a snapped screw without too much difficulty.
The first step is to try to remove the snapped screw with a pair of pliers. If the screw is protruding from the surface, you may be able to grip it with the pliers and turn it out. If the screw is not protruding, you can try to use a pair of needle-nose pliers to reach into the hole and grip the screw. However, this can be difficult, and you may need to use a different method.
If you are unable to remove the snapped screw with pliers, you can try to use a screw extractor. A screw extractor is a tool that is specifically designed to remove broken screws. Screw extractors come in a variety of sizes, so you will need to choose one that is the right size for the screw that you are trying to remove. To use a screw extractor, first drill a small hole into the center of the broken screw. Then, insert the screw extractor into the hole and turn it counterclockwise. The screw extractor should bite into the broken screw and remove it.
Identifying the Type of Screw
Identifying the type of screw you’re dealing with is crucial for choosing the appropriate removal method. Screws come in various types, each with distinct characteristics:
Phillips Screws
Phillips screws are the most common type, featuring a cross-shaped recess in the head. They are typically made of stainless steel or brass and are used in a wide range of applications.
Slotted Screws
Slotted screws have a single, straight groove cut into the head. While they are less common than Phillips screws, slotted screws are still found in older fixtures and appliances.
Hex Screws
Hex screws have a hexagonal head that requires a hex key or Allen wrench for tightening and loosening. They are often used in industrial and automotive applications.
Robertson Screws
Robertson screws resemble Phillips screws but have a square-shaped recess instead of a cross. They are commonly found in Canadian-made products.
Torx Screws
Torx screws feature a star-shaped recess and are known for their high torque capability. They are often used in electronics and automotive parts.
| Screw Type | Recess Shape | Common Applications |
|---|---|---|
| Phillips | Cross-shaped | General-purpose |
| Slotted | Single, straight groove | Older fixtures, appliances |
| Hex | Hexagonal | Industrial, automotive |
| Robertson | Square-shaped | Canadian-made products |
| Torx | Star-shaped | Electronics, automotive |
Gathering the Necessary Tools
When attempting to remove a snapped screw, it is crucial to gather the appropriate tools to ensure a successful and safe operation. Here is an expanded list of essential tools:
Screwdriver Bits:
Choose the correct screwdriver bit size for the screw head. Ensure it is made from high-quality materials to withstand the force required for extraction.
Needle-Nose Pliers:
Needle-nose pliers provide a precise grip on small objects, making them ideal for grabbing the exposed portion of the snapped screw. Opt for pliers with a sharp, pointed tip for optimal reach and control.
Drill Bits:
Depending on the type and size of the screw, you may need a drill bit to create a hole for extraction. Select a drill bit that is slightly smaller in diameter than the screw to avoid damaging the surrounding material.
Left-Handed Drill Bit:
Left-handed drill bits are specifically designed to remove snapped screws by reversing the rotation direction and loosening the grip. They are highly effective but should be used with caution as excessive force can damage the screw or surrounding material.
Extractor Bit:
Extractor bits are cone-shaped tools with cutting teeth that can grip and remove damaged screws. They come in various sizes to match the screw head. A high-quality extractor bit can provide excellent leverage for successful extraction.
Other Useful Tools:
In addition to the essential tools, consider gathering the following items to enhance your chances of success:
| Tool | Purpose |
|---|---|
| Teflon Tape | Lubricates the screw threads and prevents binding. |
| Penetrating Oil | Loosens rusted or stuck screws by breaking down corrosion. |
| Heat Gun | Expands the screw by applying localized heat, making it easier to remove. |
Using a Screw Extractor
Using a screw extractor, also known as an Easy-Out or Bolt Extractor, is a more specialized approach to removing snapped screws. Screw extractors are tapered, clockwise-rotating tools that bite into the remaining screw and allow you to extract it. Here are the steps to use a screw extractor:
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Select the Correct Screw Extractor Size
Choose an extractor that is slightly smaller than the diameter of the snapped screw. A too-large extractor will slip, while a too-small extractor may break.
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Create a Pilot Hole
Using a drill bit slightly smaller than the extractor, drill a shallow pilot hole in the center of the snapped screw. This will guide the extractor and prevent it from slipping.
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Insert the Screw Extractor
Place a hex key or socket wrench into the head of the extractor and carefully insert it into the pilot hole. Turn the extractor clockwise slowly to engage the threads.
If the extractor becomes stuck, try using a penetrating oil to lubricate the threads. If the extractor breaks, you can try using a left-handed drill bit to remove the remaining extractor fragment. However, this can be a risky maneuver and requires caution.
-
Remove the Screw
Once the extractor has engaged the screw, continue to turn the extractor clockwise until the screw loosens. Once the screw is loose, remove the extractor and the damaged screw.
Drilling Out the Screw
Drilling out a snapped screw is a more involved process than using a screw extractor, but it is also more likely to be successful. The key is to drill a hole that is just large enough to fit the screw extractor. If the hole is too small, the extractor will not be able to grip the screw, and if the hole is too large, the screw will be able to move around and you will not be able to remove it.
To drill out a snapped screw, you will need a drill, a drill bit that is the same size as the screw, and a screw extractor. You will also need some safety glasses and gloves.
To drill out the screw, follow these steps:
- Put on your safety glasses and gloves.
- Using a center punch, create a small indentation in the center of the broken screw.
- Select a drill bit that is the same size as the screw. Start by drilling a small hole in the center of the screw. Then, gradually increase the size of the hole until it is just large enough for the screw extractor.
- Insert the screw extractor into the hole and turn it counterclockwise. As you turn the screw extractor, it will grip the screw and begin to loosen it.
- Once the screw is loose, remove it from the hole. Be careful not to drop the screw, as it may be sharp.
If you are unable to remove the screw using a screw extractor, you can try using a drill to drill out the screw. However, this is a more difficult process and is not recommended for beginners.
Here is a table that summarizes the steps for drilling out a screw:
| Step | Description |
|---|---|
| 1 | Put on your safety glasses and gloves. |
| 2 | Create a small indentation in the center of the broken screw using a center punch. |
| 3 | Select a drill bit that is the same size as the screw. Start by drilling a small hole in the center of the screw. Then, gradually increase the size of the hole until it is just large enough for the screw extractor. |
| 4 | Insert the screw extractor into the hole and turn it counterclockwise. As you turn the screw extractor, it will grip the screw and begin to loosen it. |
| 5 | Once the screw is loose, remove it from the hole. |
Using a Reverse Drill Bit
This method involves using a specially designed reverse drill bit, which rotates in the opposite direction of a standard drill bit. The teeth of the reverse drill bit are designed to grip the broken screw and extract it by unscrewing it. Here’s a detailed step-by-step guide:
- Select the appropriate reverse drill bit size. It should be slightly smaller than the diameter of the snapped screw.
- Place the reverse drill bit into a power drill.
- Align the drill bit with the center of the snapped screw.
- Apply firm downward pressure and slowly start drilling.
- Once the reverse drill bit engages with the broken screw, it will begin unscrewing it.
- Continue drilling until the screw is completely removed from the material.
Additional Tips:
- Use a low drill speed to prevent the screw from further breaking or damaging the material.
- Apply penetrating oil to the screw before drilling to lubricate it and make it easier to remove.
- If the broken screw is close to the surface, you may be able to grasp it with a pair of pliers and gently unscrew it.
| Pros | Cons |
|---|---|
| Effectively removes snapped screws | Requires a specialized reverse drill bit |
| Works well on various materials | Can be time-consuming if the screw is deeply embedded |
Removing a Stripped Screw with a Rubber Band
If you’re dealing with a screw that’s been stripped, a rubber band can be a surprisingly effective tool for extracting it. Here’s how to do it:
- Place a rubber band over the screw head. Stretch the rubber band around the screw head so that it fits snugly.
- Apply downward pressure. Use a screwdriver to apply downward pressure on the screw head. The rubber band will create friction, helping to grip the screw.
- Turn the screwdriver. While applying downward pressure, slowly turn the screwdriver counterclockwise to remove the screw.
- Be patient. This method may require some patience, especially if the screw is particularly stubborn.
- Use a new rubber band if necessary. If the rubber band starts to slip, replace it with a new one.
- Protect the screw head. Placing a piece of cloth or tape over the screw head can help prevent further damage to the screw head.
- Alternatives:
Method Description Extractor drill bits Drill a small hole into the screw head and use an extractor bit to remove it. Slotted screwdriver If the screw head has some remaining slots, use a slotted screwdriver to engage them and turn the screw. Locking pliers Grip the screw head with locking pliers and turn it counterclockwise.
Using a Hammer and Cold Chisel
This method is suitable for removing broken screws with exposed threads. Here are the detailed steps:
- Wear safety glasses to protect your eyes.
- Select a cold chisel with a size that matches the diameter of the broken screw.
- Position the chisel’s edge at a 45-degree angle to the exposed threads.
- Hold the chisel firmly and strike it with a hammer, applying force in the direction you want the screw to turn.
- Continue striking the chisel until the screw starts to loosen.
- Once the screw is loose, use a pair of pliers or tweezers to remove it completely.
- Clean the hole where the screw was located to remove any remaining debris.
Tips for Using a Hammer and Cold Chisel:
| Tip | Details |
|---|---|
| Use a sharp chisel | A dull chisel will not grip the screw effectively. |
| Apply even force | Striking the chisel off-center can cause it to slip or damage the screw. |
| Be patient | Removing a snapped screw can take time and effort. Avoid rushing the process. |
Preventing Future Screw Snapping
Selecting the Correct Screw Size
Use screws that match the size of the holes you are drilling. Oversized screws can cause the material to split, increasing the risk of snapping.
Pre-Drilling Holes
Always pre-drill holes before inserting screws. This reduces the amount of force required to drive the screw in, preventing it from becoming over-torqued and snapping.
Using the Right Screwdriver
Select a screwdriver that fits the screw head snugly. Loose-fitting screwdrivers can slip, damaging the screw head and making it more likely to snap.
Applying Moderate Pressure
When driving a screw in, apply moderate pressure. Excessive force can cause the screw to bind and snap. Use a ratchet or impact driver for greater control.
Lubricating the Screw
Apply a small amount of lubricant to the screw before inserting it. This reduces friction, making it easier to drive the screw in and preventing it from seizing.
Using a Countersink Bit
If the screw head needs to be flush with the surface, use a countersink bit to create a recessed area before driving the screw in. This ensures a clean and secure fit without compromising screw stability.
Avoiding Over-Tightening
Stop driving the screw as soon as it feels snug. Over-tightening can cause the screw to snap or damage the surrounding material.
Using a Screw Extractor
Have a screw extractor on hand in case a screw snaps. A screw extractor is specially designed to remove broken or stripped screws without causing further damage.
Choosing the Right Material
Select screws made from high-quality materials, such as hardened steel or stainless steel. These materials are more durable and less likely to snap under pressure.
Tips for Success
Removing a snapped screw can be frustrating, but with the right tools and techniques, it’s possible. Here are some tips to help you succeed:
1. Identify the Type of Screw
First, determine the type of screw you’re dealing with. Different screw types require different removal methods.
2. Gather the Right Tools
You’ll need a set of screwdrivers, pliers, an EZ-Out extractor, and possibly a drill.
3. Prepare the Area
Clear the area around the screw to provide good access. Clean the screw head with a wire brush or compressed air.
4. Attempt to Remove Manually
Using a screwdriver that fits snugly, try to remove the screw manually. Apply firm pressure and turn counterclockwise.
5. Use an EZ-Out Extractor
If manual removal fails, insert an EZ-Out extractor into the screw hole and turn it counterclockwise. The serrations on the extractor will grip the broken screw and loosen it.
6. Drill Out the Screw
If the extractor doesn’t work, carefully drill a small hole in the center of the screw. Use a drill bit slightly smaller than the screw’s diameter.
7. Use a Reverse Drill Bit
Insert a reverse drill bit into the hole and turn it counterclockwise. The drill bit will grip the broken screw and remove it from the hole.
8. Use a Bolt Extractor
For stubborn screws, a bolt extractor may be necessary. This tool is specifically designed to remove broken bolts and screws.
9. Apply Heat
Heating the screw with a heat gun can loosen any adhesive or sealant that may be holding it in place.
10. Use a Screwdriver Bit Holder
To prevent slipping and damage to your screwdriver, use a screwdriver bit holder instead of gripping the screw head directly. This provides better grip and stability.
11. Use a Drill Guide
When drilling, use a drill guide to ensure accuracy and prevent the drill bit from wandering.
12. Soak the Screw in a Penetrating Oil
If the screw is rusted or corroded, soak it in penetrating oil for several hours to loosen it.
13. Use a Vacuum Cleaner to Remove Debris
Regularly use a vacuum cleaner to remove metal shavings and debris from the work area, especially when drilling.
How to Remove a Snapped Screw
Dealing with a snapped screw can be a frustrating experience, but it is not an insurmountable one. Here are some effective methods for removing a snapped screw:
1. **Use a screw extractor:** Screw extractors are specifically designed to remove broken or damaged screws. They come in various sizes and are available at most hardware stores. Simply insert the extractor into the snapped screw, apply pressure, and turn counterclockwise to remove the screw.
2. **Use a drill and extractor bit:** If you have a drill, you can use a specialized extractor bit to remove the snapped screw. Drill a small pilot hole into the center of the screw, then insert the extractor bit and carefully turn it counterclockwise until the screw is removed.
3. **Use a pliers:** If the screw is exposed enough, you can use a pair of pliers to grip the snapped end and carefully twist it counterclockwise to remove it. This method is not always effective, but it can be successful in certain situations.
4. **Use a hacksaw:** If the snapped screw is protruding from the surface, you can use a hacksaw to cut a slot into the screw. Once the slot is cut, you can insert a flathead screwdriver into the slot and carefully turn the screw counterclockwise to remove it.
People Also Ask
How do you remove a snapped screw without a drill?
There are several methods for removing a snapped screw without using a drill. Here are a few options:
- Screw extractor
- Pliers
- Hacksaw
- Rubber band
- Super glue
What is the easiest way to remove a snapped screw?
The easiest way to remove a snapped screw depends on the specific situation. In general, using a screw extractor is the most effective method, followed by using a drill and extractor bit.
