Fasteners

Elevates e.g. solar panels above the roof surface, which prevents roof indentations and water pooling.
Wide adjustment options
The threaded rods are cut to the required length according to the order

For fastening Croco A and B 110 Fasteners to a sheet metal or wooden fix-layer
No.3 screw should be used with thicker materials
The length of the screw should be chosen according to the insulation thickness and the length of the fastener, so that the screw pierces the steel to a depth of at least 15 mm

Roofing screw with pre-installed washer
For use on various types of wooden substrates (OSB, plywood, and raw boards)
The screw head is Torx 25 (TX25)