SCREW FO R COVERINGS By IMPERTEK
Screw
PH-TB SE LF-DRILLING SCREWS FO R COVERINGS
Fixing on sheet metal and wood. Drilling capacity 2x1,25 mm without pre-drilling. On sheet metal insulation board thickness + minimum 20 mm. Fixing on wood Insulation board thickness + wood thickness.
HD SCREW FO R COVERINGS
Fixing on sheet metal: thickness without pre-drilling 2x1,25 thickness of the insulation board + minimum 20 mm. Fixing on wood: insulation board thickness + wood thickness. Fixing on concrete: insulation board thickness + minimum 25 mm 5 or 5,5 mm pre-hole. Fixing on lightened concrete: insulation panel thickness + at least 55 mm.