HV high-strength bolt sets for preloading

Positively completed certification by TÜV NORD allowed us to extend our offer by HV high-strength bolt sets for preloading according to DIN 14399-1:2015.

The HV set consists of the following:

  • bolt according to EN 14399-4
  • nut according to EN 14399-4
  • two washers according to EN 14399-6

The product offering of the HV bolt sets from Koelner Rawlplug factory in Łańcut includes an assortment in the range of M12 to M36. The products are available to order straight from our warehouse. A detailed list of available sizes can be seen in the informative brochure available HERE. You can also verify the current availability of the products, as well as the possibility to manufacture other sizes, by contacting our sales department HERE.

Screws in the range of M12-M30 are produced using the cold forging technology in modern presses from leading manufacturers, such as SP-660 – which is the largest press available in Poland.

Go to top


Sustainable business, clear future.

Sustainability at Rawlplug