Double-threaded screw for fastening photovoltaic systems on roofs with a steel load-bearing structure covered by corrugated panels, faux panels or tiles.
STSI is the double-threaded screw in A2 stainless steel for PV panels mounting on roofs with a steel load-bearing structure covered by corrugated panels, faux panels or tiles. Incorporated EPDM gasket for sealing against rain infiltration. Pre-drilling required.
