Evolution 5.5 x 73mm Timber Tek Screws TSTF5.5-73-7 – TEK7 Super Wing Drill Screw Torx CSK for Very Heavy Steel Section 4.0mm to 18mm in Evoshield® Plating

Used for attaching metal to heavy section steel (Max. 12mm) without the need to pre-drill a hole.
Exterior plating gives a reliable and durable corrosion resistant coating which resists 1,000 hours salt-spray

The heaviest duty timber tek screw manufactured by Evolution – tek 7. Designed to attach timber or composite material to steel sections of thickness between 4.0mm and 18mm.

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