Plastics head plate, to fasten flat insulation to flat roofs, has an upper ring chamber with a ring and shoulder and an insert with lower pins

摘要

The plastics head plate (7,7a,7b), to fasten flat insulation materials to flat roofs, has a recess (9) forming a ring-shaped chamber and a cylindrical ring (12) and a shoulder (16). The under side (13) of the plate is fitted with pins (14), teeth or hooks. A metal insert (15) has projections (17) from the under side of the plate.