Screw 6.0 x25 self-tapping A2 with sealing washer

If you are looking for the strongest brand on the market, look no further. Schletter mounting group is a time-tested brand with a history in manufacturing that dates back to 1968. One of the only companies to offer a 25-year warranty to match the lifespan of the solar module. This Bavarian company specialise in all aspects of solar mounting on a global scale, from huge ground mount projects to small pitched roofs.