How To Remove Bolts That Are Stripped

How to Remove Stripped Bolts: A Comprehensive Guide

Dealing with a stripped bolt is frustrating, but don't despair! This comprehensive guide will walk you through various methods to remove those stubborn fasteners, from simple tricks to more advanced techniques. Whether you're working on a car engine, household appliance, or a DIY project, this guide will help you get the job done.

What Causes Stripped Bolts?

Before diving into solutions, let's understand why bolts strip in the first place. Common culprits include:

• Over-tightening: Applying excessive force during installation is a major cause.
• Improper tool use: Using the wrong size socket or wrench can damage the bolt head.
• Corrosion: Rust and corrosion weaken the bolt, making it susceptible to stripping.
• Low-quality bolts: Inferior materials are more prone to stripping.
• Vibration: Constant vibration can gradually loosen and damage bolts over time.

Methods for Removing Stripped Bolts:

The best approach depends on the severity of the stripping and the type of bolt. Here are some effective techniques:

1. Rubber Band or Grip Enhancement:

This simple trick works surprisingly well for slightly stripped bolts. Place a rubber band (or several layered rubber bands) over the bolt head before applying your wrench or socket. The added grip improves traction, often enough to loosen the bolt.

2. Using a Larger Socket or Wrench:

If the stripping isn't too severe, a slightly larger socket or wrench might provide enough grip to turn the bolt. Proceed with caution and avoid applying excessive force.

3. Penetrating Oil:

Penetrating oil, like WD-40 or PB Blaster, can help loosen rusted or seized bolts. Apply generously and allow it to penetrate for several hours or overnight before attempting to remove the bolt.

4. Bolt Extractors:**

Bolt extractors are specialized tools designed for removing stripped bolts. They work by gripping the remaining threads of the bolt. Different types are available, including left-hand drill bits and screw extractors. This method requires some mechanical skill and the correct size extractor to avoid further damage.

5. Drilling Out the Bolt:

As a last resort, you might need to drill out the bolt. This requires precision and the right drill bit size to avoid damaging surrounding materials. Center the drill bit carefully on the bolt and drill slowly, ensuring the drill stays straight to prevent wandering. You may need to use an easy-out, specifically designed to remove broken bolts, once the bolt is drilled to a manageable point.

6. Using a Vice Grip Pliers:

For easily accessible bolts with significant portions of the head remaining, vice grips can provide a strong grip. Adjust the grips tightly around the head and attempt to loosen the bolt with caution, remembering that damage to surrounding components is possible.

Preventing Stripped Bolts:

Preventing stripped bolts is always better than having to remove them. Here are some preventative measures:

• Use the correct size tools: Always use sockets and wrenches that precisely fit the bolt head.
• Apply the right amount of torque: Avoid over-tightening. Consult a torque wrench for precise tightening if necessary.
• Use high-quality bolts: Invest in durable, corrosion-resistant bolts.
• Regular maintenance: Inspect bolts regularly for signs of damage or wear.
• Lubrication: Applying lubricant before installation prevents seizing and corrosion.

By following these tips and choosing the appropriate method for your situation, you can effectively remove stripped bolts and avoid further damage. Remember safety first and always proceed with caution. If you're unsure about any of these methods, it's best to consult a professional mechanic or handyman.