How To Remove An Expansion Bolt That Has Been Driven Into The Wall?

Expansion screws are widely used in our life because the stability of the expansion screws is better, it is not easy to fall off after installation into the wall, which is an advantage of the expansion screws, but also its disadvantage. There are a lot of families that install expansion screws, find that they are not installed properly, and want to take them out. The stability of the expansion screws is excellent. Can the expansion screws be removed after installation? Maybe that’s what a lot of families want to know.  As a professional fastener manufacturer, Xinchi Fastener Company would like to share several methods of removing expansion bolts that have been driven into the wall.

Expansion screws generally refer to metal expansion screws. Expansion screws use the wedge Angle to promote the expansion to produce friction gripping force, so as to achieve a fixed effect. The screw is threaded at one end and tapered at the other. The expansion screw is covered with a tin (sometimes steel pipe), and the tin cylinder (steel pipe) half has a number of notches, and they are put together into the hole made in the wall, and then lock the nut. The nut pulls the screw outward, pulling the taper into the tin cylinder, which expands and is fastened to the wall. Expansion screws can generally be used for fastening guardrails, awnings, air conditioning, etc., on cement, brick, and other materials. But its fixation is not very reliable. If the load has large vibration, it may lose, so it is not recommended for installing ceiling fans.

Can the expansion screws be removed? Xinchi Fastener Company will share 4 methods to take out the expansion screws in the hope that it can be helpful.

Method 1: Removing the expansion screw requires removing the screw cap first, and then tapping the screw into the wall with a hammer. Then use pliers to pull out the iron sheet outside the screw, after pulling out the iron sheet, and then use pliers to clamp the screw, while shaking to pull it out. Then hit it up and down with a small hammer, shake it a few times, and it can be easily taken out. Some very strong expansion bolts, even if you do this but still can not pull out, you can use a chisel all around the drop point, and then turn to pull out. If that doesn’t work, drill straight in with a 6 mm electric hammer bit, taking care not to drill below the depth of the screw. Then hold the outer ring of the expansion screw with pliers and pull it outward as you turn. This will pull out the most stubborn screws.

Method 2: First, knock the exposed bolt part into the wall so that the expansion part of the bolt is separated from the shell expansion tube. Then use needle-nose pliers to clamp the expansion shell and pull it out. After pulling out the expansion housing, you just need to push the screw in when pulling the expansion tube, and the bolt can be easily taken out. If it does not loosen, you can only use a hammer drill to loosen the outside of the sleeve, and then repair the wall.

Method 3: Cut off the outside part with a hacksaw and drive it all into the wall. The expansion bolts will rust and break through the wall paint.

Method 4: Corrosion with sulfuric acid. But this method is not safe or environmentally friendly and has a greater impact on the wall. Not recommended!

The above explains several methods to take out the expansion screws. From the article, we can know that although the expansion screws can be removed, the process is more troublesome. And it can damage the walls if you’re not careful. If mishandled, the gains outweigh the losses. Therefore, in the use of expansion screws, we should try to pay attention to the standard installation, and avoid taking them out.

Anji Xinchi Fastening Piece Co., Ltd is a trustworthy fastener company, especially in furniture nuts. And we are the designated fastener supplier to“STAPLE”. As a trusted fastener supplier,  Xinchi Fastener Company can offer a wide range of high-quality fasteners, including tee nuts, screws, bolts, rivets, washers, etc. If you want to know more about fasteners or want to wholesale fasteners, please feel free to contact us. And then our experienced and expert service team will reply to you as soon as possible.