Screw made of special steel to attach the DELTA®-MAXX POLAR on-roof insulation.
High corrosion protection and special surface hardness. Due to the special geometry the screw-in torque is highly reduced. General building authority approval Z-9.1-836.
The DELTA®-SYSTEMSCHRAUBE (system screw) is used as a suction and push screw for fastening the DELTA®-MAXX POLAR rafter insulation.
The length of the DELTA®-SYSTEMSCHRAUBE (system screw) depends on the structure of layers above the rafters.
Torx T40 bits are required to fasten the DELTA® SYSTEMSCHRAUBE (system screw).
The required quantity must be calculated related to the object. For more information send a email to membranes@doerken.de.
Screw lengths | 180 mm, 200 mm, 220 mm, 240 mm, 260 mm, 280 mm, 300 mm, 320 mm, 340 mm |
Packaging | 50 Stk. / box |