Self-sealing screws and nuts

Self-sealing screws and nuts provide reliable protection against the ingress of liquids and gases.

Self-sealing screws and nuts are used in many areas, such as hydraulic systems, medical equipment, or tank containers. They should be used wherever there is a risk of unwanted ingress of liquids or gases. These special screws and nuts from APM Hexseal feature a patented sealing ring that provides full protection while still allowing complete metal-to-metal assembly. In this way, sealing is ensured and loosening of the screws due to vibration is prevented. A wide range of different self-sealing screws and nuts, all UL-recognized, are available:

  • Different lengths and sizes
  • Different materials
  • Various screw head shapes

Another advantage of self-sealing screws and nuts is that, thanks to the excellent processing of the sealing ring, which prevents it from detaching, they can be reused multiple times and therefore offer a high level of durability. This makes the sealing significantly more efficient than alternative sealing methods, such as the use of adhesive.

Self-sealing screws and nuts by ALDERS


Self-Sealing Screws and Nuts of High Quality

The quality of self-sealing screws and nuts is characterized by their high preload force and by the fact that they remain sealed even under high pressure. In addition, depending on the material, they withstand temperatures ranging from -106 °C to +260 °C. They are particularly robust, which makes them suitable for a wide range of applications. In our product range, you will find self-sealing nuts with pure thread sealing, bell sealing, and dome sealing.

The advantages of self-sealing screws and nuts are numerous. On the one hand, they are installed just like conventional screws and nuts, which results in extremely simple yet highly effective assembly. Furthermore, the screws can be applied to all surfaces without impairing their functionality.

APM Hexseal specializes in protecting electromechanical components from environmental influences. We have trusted the products of this company for many years, which is why APM Hexseal is one of our premium partners.

Self-Sealing Screws and Nuts as Well as Much More at ALDERS

In addition to our range of self-sealing screws and nuts, we of course offer a wide portfolio of products for all areas of electromechanics. With over 30 years of experience in this field, we at ALDERS know exactly what matters. That is why we always ensure that our product range is of high quality and technologically up to date. We specialize in components for various sectors such as aerospace, military and maritime technology, motorsport, and many more. We maintain long-standing relationships with our premium partners and use this unique network to consistently ensure the quality and high standard of our products.

If you are interested in self-sealing screws and nuts from APM Hexseal, a detailed data sheet is available in the product description. There you will also find information on how to order the products. Do you have further questions or would you like advice on self-sealing screws and nuts? Then call us or send us an email – we look forward to your inquiry.

Self-Sealing Screws, Nuts and Washers – Solutions in E-Mobility

Our premium partner APM Hexseal also offers a wide range of solutions when it comes to e-mobility. For example, to prevent short circuits in batteries, battery covers must ensure 100% protection against water ingress. For this purpose, APM offers self-sealing screws, nuts, and self-sealing washers.

Custom solutions

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