Vortex Frame 6.0mm diameter-24 threads per inch x 16mm long screw class 3 coating
Vortex Frame screws have an ultra flat head with trilobular Vortex thread with a cone point for fastening light steel sections through 3 to 3.5mm pre-drilled holes.
Vortex Screws are a universal screw for fixing to timber and steel up to 1.5mm thick. Vortex framing screws are high performance, specifically developed for application in pre engineered building systems.
The Class 3 corrosion protection system meets the requirements of ISO 9223 Category 3 (Outdoor application for mild and moderate environments).
AS 3566.2 (Self drilling screws for the building & construction industries) specifies the corrosion protection systems required on screw fasteners Classes 1, 2, 3 & 4 where Class 1 is intended for indoor application and Class 4 for environments up to and including ISO 9223 Category 4 (Severe industrial and severe marine environments).