KonstruX ST A4 maximise a joint’s load-bearing capacity with a high thread extraction resistance in both components. If partially threaded screws are used, the joint’s load-bearing capacity is limited by the considerably lower head-pull through resistance in the attached part. Suitable for use in wood/wood joints, both indoors and outdoors. The application areas of KonstruX ST A4 can be found on playgrounds, balconies, in sun protection in the form of a pergola as well as in hydraulic engineering, e.g. jetties and piers outdoors.

CERTIFICATION · Regulated by European Technical Certification ETA-11/0024

ADVANTAGES · Can be used in service classes 1 to 3 according to DIN EN 1995 - Eurocode 5 (A4 T4/CRCIII. Suitable for heavily polluted urban and industrial areas and > 0.25 km from the coastline). · Suitable for woods containing tannins and salty atmospheres · Corrosion-resistant and conditionally acid-resistant · Good resistance in moderately aggressive environments that do not contain chlorine