In Betektect Thermal Insulation System, these are used to fasten Betektect Thermal Insulation Plates to the surfaces and to protect the system against wind vacuum.

Exclusively manufactured to be used in Osb and similar prefabricated surfaces. Since the diameter, size of the nail has to change depending on the surface,

Betektect OSB Dowel has no nail.
Diameter of dowel head: 6 cm
Length: 2.5 cm