How to Remove a Rusted Stainless Steel Expansion Bolt

Taking off rusted stainless steel expansion bolts in daily life can be challenging. However, some techniques can make this task easier. As a professional fastener manufacturer, XINCHI is pleased to share these tips.

Overview of the Fixing Principle of Stainless Steel Expansion Bolts

Stainless steel expansion bolts use a wedge-shaped incline principle for fastening, leveraging friction to achieve a secure hold. Each bolt consists of a screw and an expansion tube. When the nut is tightened, the screw moves, creating significant positive pressure, which achieves the fastening effect. The spring washer and flat washer help prevent the nut from loosening and distribute pressu re evenly.

Specifications of Stainless Steel Expansion Bolts

Stainless steel expansion bolts come in various grades and materials, and the appropriate specification should be chosen based on the application. Common specifications include 6×60, 6×80, 6×120, and 6×150.

Applications of Stainless Steel Expansion Bolts

Thanks to their advantages, stainless steel expansion bolts are widely used in various installation scenarios, such as securing air conditioners and fixing frameless balcony windows.

Tips for Dealing with Rusted Stainless Steel Expansion Bolts

1. Vibration: Gently tap the wrench handle with a hammer to loosen the rusted bolt.
2. Tapping: Use the edge of a square-top hammer to knock the rusted nut, helping it loosen.
3. Heating: Heat the bolt with an oxyacetylene torch and apply a drop of oil. The expansion and rapid contraction make it easier to remove the nut.
4. Welding: Weld an iron piece onto the broken bolt, making it easier to turn and remove.
5. Impacting: Use a hammer and a flathead screwdriver to create a V-shaped notch on the bolt head. Strike in the direction to loosen the bolt, then use pliers to turn and remove it.

You can choose the most suitable technique to deal with rusted stainless steel expansion bolts effectively based on the specific situation.

XINCHI is a trustworthy fastener company, especially in furniture nuts. We have a factory,  founded in 2007. And we are the designated fastener supplier to“STAPLE”. As a trusted fastener supplier,  XINCHI can offer a wide range of high-quality fasteners, including 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.