screws used to secure the OMAX roof and facade (facing) of sheet metal to metal structures, as well as for fixing metal roofing sheets for the imposition of one another.
Screw washer is equipped with a rubber gasket EPDM. The maximum recommendedthickness of the material drilled at a diameter of 5.5 - 5.3 mm, 6.5 - 6.3 mm.
technical characteristics