BLACK EXTERIOR COATED Performance Screw – Countersunk

These black exterior screws are built for jobs where the screw needs to perform as hard as the work around it. The multi-layer coating combines a zinc base layer with an organic top coat barrier, giving each screw a minimum of 1,000 hours salt spray resistance. That is a meaningful level of protection for exterior timber applications, fencing, decking, cladding, and any structural work exposed to the elements. The black finish also keeps things looking clean where the fixings are visible.

The dual angle thread is what sets these apart from a standard woodscrew. It is designed to give exceptionally high pull-out resistance, which matters on long fixings into structural timber or when you are driving into hardwood where thread engagement is critical. Once these are in, they stay in.

What Makes These Black Exterior Screws Worth Using

The patented twin cut point technology does two things at once. It speeds up the initial pick-up when you are driving the screw, and it reduces the risk of timber splitting as the screw enters the material. On dry or dense timber, splitting is a real problem with cheaper screws. The twin cut point reduces that risk without needing to pre-drill in most applications.

Ribs under the head improve countersinking performance. The screw pulls itself flush cleanly without leaving a raised edge or a rough finish around the head. For visible work where appearance matters, this makes a noticeable difference.

All sizes up to and including 75mm are fully threaded, which maximises grip in the timber. For lengths from 80mm upwards, the thread runs for 70mm from the point. This is the correct engineering approach for longer fixings, where a full thread all the way up the shank would actually reduce clamping force between two materials.

Thread Length and Size Range

The range covers sizes from 3.5x45mm right through to 6.0x150mm, with box quantities varying by size. Whether you are working through a box of 400 smaller screws on a fencing run or picking up 50 of the larger structural sizes, the pack quantities are set up sensibly for trade use rather than retail convenience.

Available in 4.0mm, 5.0mm, and 6.0mm diameter alongside the 3.5mm option, these cover the majority of exterior timber fixing requirements across construction, groundworks, decking, cladding, and general joinery. The black exterior screws sit in a price range where you are not paying a premium for a brand name, but you are getting the engineering features that actually matter: coating quality, thread geometry, and point design.

If you need a reliable black exterior fixing screw with proper corrosion protection and a thread that genuinely holds, these cover all the bases without overcomplicating the decision.