Engineered for cyclone-prone areas, this premium Class 4 self-drilling screw features a 6-star EPDM sealing washer and pressure plate assembly for superior strength, sealing, and corrosion resistance. Tested and approved by The University of Adelaide (EngtEST), it meets or exceeds all relevant Australian Standards and is officially listed in the NT Deemed to Comply Manual (DTCM). Features Class 4 galvanised for extreme corrosion resistance 6-star EPDM washer and pressure plate assembly Independently tested and DTCM approved Complies with all current Australian Standards Applications Roofing in cyclonic zones Ideal for fixing into steel battens or purlins with self-drilling tek point Downloads Cyclonic Screws Brochure - January 20233003.4 - Screw Guide (Self Drill and Type 17) TDS
