The Class 4 Tek screw is ideal to use at coastal areas or when using a galvanised zincalume roof sheeting (Chromadek).

Do not use with a bonded washer, use the rubber washer supplied.

A dual thread screw ideal to secure IBR or corrugated sheeting to metal roof structures.

The dual thread shank drills through the IBR sheeting and at the point where it starts to drill through the metal structure below; the break in thread allows it to spin in the sheeting while

The product requires a power tool and a nutsetter to complete installation.

Drill slower than 1,500 rpm.

Hold the power drill at a 90 degree angle.

Do not drill the tek screw through a welded joint.

Choose the correct length screw: the screw should be able to drill through the object and substrate and grip a sufficient amount through the substrate.

The drilling point must be long enough to completely drill through the material before the thread engage.

Can be used for general metal construction due to the self cutting steel point.

Metal should not be thicker than 5mm.