HA-screw-sets®
made of high-strength aluminum for pretensionable aluminum constructions with higher corrosion protection and reduced weight
![](https://eska.net/wp-content/uploads/2023/09/HA-Garnitur_17.jpg)
ESKA is the first manufacturer in the world to offer high-strength aluminum bolt sets for prestressable connections in aluminum construction.
The HA-screw-sets® made of aluminum alloys are based on the successful ESKA Aludrive® products and are geometrically designed according to DIN EN 14399-4 and -6 based on the high-strength, pretensionable fittings for screw connections of the HV system made of carbon steel.
Target applications for HA-screw-sets® are pure aluminum constructions in the construction industry
The general building authority approval (abZ) / general type approval is available under the number Z-14.4-929. Authorization has also been granted to mark the fittings with the conformity mark (Ü mark) in accordance with the conformity mark regulation (as of June 2018).
![](https://eska.net/wp-content/uploads/2023/09/2023-01-24-09-36-34-AR8S3-682x1024.jpg)
![](https://eska.net/wp-content/uploads/2023/09/2023_07_27-Alu-Verschraubung-Bruecke-02-zoom-768x432.webp)
![](https://eska.net/wp-content/uploads/2023/09/2023_08_07-Oberleitungen-01-zoom-1280x720.webp)
![](https://eska.net/wp-content/uploads/2023/09/2023_08_02-Antenne-01-zoom-768x432.webp)
Sanitary fittings
![](https://eska.net/wp-content/uploads/2023/09/2023-09-12-11-47-42-BR8S4-1-1280x854.jpg)
Facade screw connection
![](https://eska.net/wp-content/uploads/2023/09/2023-09-12-12-01-58-BR8S4-1-1280x854.jpg)
![](https://eska.net/wp-content/uploads/2023/09/2023-09-12-12-31-44-BR8S4-1-1280x854.jpg)