VORTEX Truss 17-13x18 Class 2 Coating

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Vortex Truss 12 gauge Hex Head with 17 gauge Shank-13 threads per inch x 18mm long screw class 2 coating

Vortex Truss screws have a Hex Head with Trilobular Vortex Thread with a Cone Point for heavy duty fastening through predrilled holes in steel. 

Vortex Screws are a universal screw for fixing to steel up to 1.5mm thick. Vortex Framing Screws are high performance, specifically developed for application in pre engineered building systems.

The Class 2 corrosion protection system meets the requirements of ISO 9223 Category 2 (Internal application for mild 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).