The new SXC5 is developed especially for increased pull out values. Depending on the subconstruction thickness we increased the pull out values by up to 50%. Therefore we are able to reduce the amount of the screws to bear the same loads as with the existing fasteners for this application or reduce the subconstruction thickness and therefore save tons of steel in each building making it even more economic. Furthermore we have also developed a new head shape to increase the pull over values by around 20%.