How to remove stuck screw?

Here's a step-by-step guide to help you get it out without damaging your material.

Removing a stuck screw can be a frustrating task, but it's something that nearly everyone has encountered at some point. Whether it’s due to rust, over-tightening, or a stripped head, a stuck screw can halt your progress on a project. However, with a bit of patience and the right techniques, you can successfully remove even the most stubborn screw. 

Step 1: Assess the Problem

Before you attempt to remove a stuck screw, it’s important to assess what exactly is causing the issue. There are a few common reasons why a screw may be stuck:

• Stripped Screw Head:
  The slots where the screwdriver fits are worn down, making it difficult to turn.
  
  
• Rust or Corrosion:
  The screw has rusted or become corroded, causing it to seize in place.
  
  
• Over-tightening:
  The screw has been driven in too tightly, or the material around it has compressed, making removal difficult.

Once you know the cause, you can decide which method to use.

Step 2: Use the Right Tools

Having the right tools is critical. If you're trying to remove a stuck screw with a worn or incorrect screwdriver, you’ll likely make the situation worse. Here’s what you’ll need:

• Screwdriver or Bit:
  Make sure you're using the proper size and type (Phillips, flathead, etc.) to fit the screw head.
  
  
• Rubber Band:
  A trick that helps with stripped screws, providing extra grip.
  
  
• Penetrating Oil:
  If rust or corrosion is the issue, a penetrating oil like WD-40 can loosen the screw.
  
  
• Pliers or Vice Grips:
  For screws with protruding heads that can be grabbed.
  
  
• Heat Source:
  A soldering iron or even a hairdryer can help expand the metal and break the bond.
  
  
• Hammer:
  Gently tapping the screwdriver into the screw can help jar it loose.
  
  
• Screw Extractor:
  A specialized tool designed specifically for removing stripped or damaged screws.

Step 3: Try the Rubber Band Method (For Stripped Screws)

If the screw head is stripped, a common trick is to place a rubber band over the head of the screw, then press the screwdriver into the band. The rubber creates extra friction, which can give your screwdriver the grip it needs to turn the screw. This method works well for screws that aren't deeply embedded but have lost their grip due to a worn-down head.

How to Do It:

1. Place a wide rubber band over the screw head.
2. Push your screwdriver firmly into the rubber band.
3. Turn the screwdriver slowly but with firm pressure.

If it catches, you’ll be able to unscrew it without much effort.

Step 4: Apply Penetrating Oil (For Rusted Screws)

If your screw is rusted or corroded, apply a penetrating oil such as WD-40. The oil will seep into the threads, reducing friction and loosening the bond between the screw and its housing.

How to Do It:

1. Spray or apply a small amount of penetrating oil directly onto the screw head and surrounding area.
2. Let the oil sit for 10 to 15 minutes to allow it to work its way in.
3. Try turning the screw again with a screwdriver. If it doesn’t move, reapply the oil and wait a bit longer.

For heavily rusted screws, you may need to repeat this process several times.

Step 5: Apply Heat (For Stubborn Screws)

If penetrating oil isn’t enough, heat can be your next best bet. Heat causes metal to expand, which can help loosen the screw from its surroundings. A soldering iron, hairdryer, or even a heat gun can work for this.

How to Do It:

1. Heat the screw and surrounding area for a few minutes. Be careful not to overheat and damage the material around the screw.
2. Once heated, use your screwdriver or pliers to attempt to turn the screw.

The expansion of the metal should help break the bond and allow for easier removal.

Step 6: Use Pliers or Vice Grips (For Protruding Screws)

If the screw head is protruding, you might be able to bypass the screwdriver altogether and grip the head with pliers or vice grips. This works well for larger screws that are exposed.

How to Do It:

1. Clamp the pliers or vice grips firmly around the screw head.
2. Gently twist the screw counterclockwise to remove it.
3. Apply steady pressure until the screw comes loose.

Step 7: Use a Screw Extractor (For Extremely Stuck or Damaged Screws)

For screws that are extremely stuck, a screw extractor may be necessary. This tool is designed to dig into the screw and remove it even if the head is completely stripped.

How to Do It:

1. Drill a small hole into the center of the screw (if necessary).
2. Insert the screw extractor into the hole.
3. Turn counterclockwise to remove the screw.

Conclusion

Removing a stuck screw can be frustrating, but with these methods and the right tools, you can get the job done. Whether you're dealing with a stripped screw head, rust, or over-tightening, remember to be patient and avoid rushing—otherwise, you could damage the surrounding material.