How To Take Off A Broken Screw

How to Remove a Broken Screw: A Comprehensive Guide

Removing a broken screw can be a frustrating experience, especially when it's in a hard-to-reach place or crucial to a functional mechanism. This comprehensive guide will equip you with various techniques to tackle this common problem, from simple methods to more advanced solutions. Whether you're a seasoned DIY enthusiast or a novice tackling your first repair, we've got you covered.

Understanding the Problem: Why Screws Break

Before diving into removal methods, it's helpful to understand why screws break in the first place. Common causes include:

• Over-tightening: Applying excessive force during installation is a frequent culprit.
• Stripped screw heads: Using the wrong size or type of screwdriver can damage the screw head, making removal difficult.
• Corrosion: Rust and other forms of corrosion can weaken the screw and make it brittle.
• Material fatigue: Repeated stress on the screw, particularly in vibrating environments, can lead to failure.
• Poor quality screws: Using low-quality screws increases the risk of breakage.

Simple Methods for Removing Broken Screws

For screws that are only slightly damaged, these simple methods might suffice:

• Improved Grip: Try using a screwdriver with a better fit. A magnetic tip can also improve grip. Consider using a power screwdriver at a low setting, but be gentle to avoid further damage.
• Rubber Band Trick: Place a rubber band over the damaged screw head. The added grip from the rubber can provide the necessary traction for your screwdriver.
• Increased Friction: Apply a substance like super glue to the screw head, let it set, and then carefully attach your screwdriver. Be mindful that this method can be messy.

Advanced Techniques for Stubborn Screws

If simpler methods fail, you may need to resort to more advanced techniques:

• Screw Extractors: These specialized tools are designed to remove broken screws. They have reverse-threaded tips that bite into the remaining screw and unscrew it. Various sizes are available, so choose one that fits the broken screw closely.
• Drill and Tap: If the screw head is completely gone, you might need to carefully drill a small pilot hole into the center of the broken screw. Then use a tap to carefully create threads and remove the remaining piece. This is more advanced and requires precision, so proceed with caution.
• Left-Hand Drill Bit: A left-hand drill bit can sometimes work magic. The reverse-threaded bit will grip the broken screw, and with careful turning, might extract it.
• Easy-Outs: These are similar to screw extractors but often come in sets for various screw sizes.

Preventing Broken Screws in the Future

Preventing broken screws is far easier than removing them. Here are some preventative measures:

• Use the Right Screwdriver: Always use the correct screwdriver type and size.
• Avoid Over-Tightening: Tighten screws firmly but don't force them.
• Use High-Quality Screws: Invest in good quality screws to ensure durability.
• Lubrication: Applying a lubricant like WD-40 before installation can help prevent seizing.

Conclusion

Removing a broken screw can be challenging, but with the right tools and techniques, it's achievable. Remember to start with the simplest methods and gradually progress to more advanced techniques as needed. By understanding the causes of broken screws and practicing preventative measures, you can minimize future frustrations. Remember safety first – wear appropriate eye protection when working with tools and potentially sharp objects.