Screw Extractors: Your Ultimate Guide for Fastener Removal

Thread extractors work by gripping into the damaged fastener and providing the necessary torque to remove it. The first step in using a thread extractor is to drill a small hole into the centre of the damaged fastener. This hole will act as a guide for the thread extractor. The extractor is then inserted into the drilled hole and turned in a counterclockwise direction.  

As the thread extractor is turned counterclockwise, its gripping mechanism tightens around the fastener. This gripping action allows the extractor to turn the fastener out of the workpiece.  

Thread extractors are typically used with hand tools such as wrenches or pliers, but can also be used with power tools for added torque.  

Using a thread extractor is a straightforward process, but it does require care and precision. Follow these steps to learn how to use a thread extractor safely and effectively: 

1. Drill a Pilot Hole: Start by drilling a small pilot hole into the centre of the damaged screw or bolt. The size of the pilot hole will depend on the size of the extractor you are using, so be sure to refer to the manufacturer’s guidelines.  

2. Insert the Extractor: Once the pilot hole is drilled, insert the pointed end of the thread extractor into the hole. Be sure to choose a thread extractor that matches the size of the pilot hole you have drilled.  

3. Turn Counterclockwise: Begin turning the thread extractor in a counterclockwise direction using a tap wrench, adjustable spanner, or other suitable hand tool. As you turn the extractor, its gripping mechanism will tighten around the fastener. 

4. Apply Torque: Apply steady and controlled torque to the extractor. You may need to use additional tools, such as pliers or a wrench, to provide more torque if the fastener is particularly stubborn. Be careful not to use excessive force, as this can break the extractor or further damage the fastener. 

5. Remove the Fastener: Continue turning the extractor until the damaged fastener begins to loosen. Once it has been fully extracted from the workpiece, carefully remove it using pliers or a suitable tool. 

It’s important to remember that using a thread extractor requires patience and precision. If the damaged fastener does not begin to turn or loosen, avoid forcing it, as this can lead to further damage. In some cases, applying a penetrating oil or heat to the fastener can help to free it up before attempting extraction. 

Thread extractors are available in a wide range of sizes to accommodate different types of screws, bolts, and studs. The most common thread extractor sizes are based on standard screw and bolt sizes. Manufacturers typically provide extractors in sets with multiple sizes for added convenience. 

The chart below outlines some of the most common thread extractor sizes based on screw and bolt dimensions: 

It’s important to choose the right size extractor for the specific type and size of screw or bolt you are working with to ensure a successful extraction. Most manufacturers provide reference charts to help you match the extractor size with the corresponding screw or bolt size. 

If you need to remove a screw with no head, the process can be a bit more challenging. Typically, the best way to tackle this is by using a drill to create a hole in the centre of the screw. Once you’ve created a hole, you can use a thread extractor as you would normally, following the process we’ve outlined above.

Removing a small stripped screw is a common challenge. The process for using a thread extractor on a small stripped screw is the same as that for a standard sized screw. The only difference is that you will need to use a smaller sized thread extractor. Most thread extractor sets will come with a range of sizes, so you should be able to find a suitable extractor for small stripped screws in a standard set. 

When buying a thread extractor, it’s important to choose a trusted supplier that offers high-quality tools. At RS Components, we are a leading distributor of industrial products in New Zealand, and we are proud to offer a wide range of thread extractors and other tools to our customers. 

With RS, you can be confident that you are getting top-quality products from reputable brands. We offer a comprehensive selection of thread extractors in various sizes to meet your specific needs. Our easy-to-use online platform makes it simple to find the right tools for your projects, and our fast, reliable delivery ensures that you get what you need exactly when you need it.  

We have been a trusted partner to businesses and professionals in New Zealand for many years, and we are committed to providing exceptional customer service and technical support. Whether you are a tradesperson, engineer, or maintenance professional, RS has the tools you need to get the job done right. 

Whether you’re a professional tradesperson, an engineer, or a DIY enthusiast, we offer a wide range of high-quality thread extractors from reputable brands. Our collection includes various types and sizes to suit different applications. Choose from individual thread extractors or sets to ensure that you have the right tool for the job.  

Explore our selection today and experience the convenience of shopping for industrial tools and components with RS Components, a trusted supplier in New Zealand.  

Shop our range of thread extractors to find the right tool for your next project.