Black exterior coated countersunk screws with dual angle thread, patented twin cut point, and 1,000-hour salt spray resistance. Fully threaded up to 75mm. Available in a wide range of sizes from 3.5x45mm to 6.0x150mm.
Available options and pricing for BLACK EXTERIOR COATED Performance Screw - Countersunk, with quantity selectors and a running total
Size
QTY
SKU
Price
QTY
Total
5.0 x 30mm
200
PE530CB
£3.27£3.92
—
4.0 x 25mm
200
PE425CB
£1.98£2.38
—
4.0 x 30mm
200
CC2TUB-1
£2.48£2.98
—
5.0 x 80mm
100
PE580CB
£4.35£5.22
—
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.
Pro Tip: If you are fixing into hardwood or dense treated timber, a quick pilot hole slightly smaller than the shank diameter will prevent even the best twin cut point from stressing the material near an edge or end grain.
These black exterior coated screws are used across a wide range of outdoor timber applications. Common uses include decking boards, garden fencing, timber cladding, pergolas, gate construction, and general structural carpentry where the fixings will be exposed to weather. The black coating makes them suitable for visible applications where a standard bright zinc screw would stand out.
Groundworkers and landscapers use the larger 5.0mm and 6.0mm sizes for heavy structural timber, sleepers, and retaining structures. The smaller 3.5mm and 4.0mm sizes suit thinner boarding, fascia, and lighter cladding work.
Fully threaded to 75mm, 70mm thread on lengths 80mm and above
Countersunk head
Not suitable for: Not suitable for use in direct contact with stainless steel fixings or highly acidic treated timbers where stainless steel fixings are specified. Not intended for use in submerged or permanently wet conditions.
These screws are designed to drive without pre-drilling into most softwood and medium-density timber, thanks to the twin cut point. In hardwood or near the edges of boards, a pilot hole reduces the risk of splitting and makes driving easier.
Use a PZ2 bit for 4.0mm and 5.0mm sizes and a PZ3 for the 6.0mm screws. Drive at a consistent speed and avoid over-torquing at the end of drive, as this can strip the countersink recess in softer timber. The ribs under the head do the work of pulling the screw flush, so there is no need to force it.
Select the correct screw size for your timber thickness, allowing at least two-thirds of the screw length to penetrate the receiving material.
Mark fixing positions and, where working near edges or in hardwood, drill a pilot hole slightly smaller than the shank diameter.
Fit a PZ2 driver bit for 3.5mm to 5.0mm screws or a PZ3 bit for 6.0mm screws.
Position the screw point on your mark and apply light forward pressure to engage the twin cut point before driving.
Drive at a steady speed, allowing the ribs under the head to countersink cleanly as the screw reaches full depth.
Stop driving once the head is flush. Over-driving will strip the countersink in softer timber and reduces holding strength.
What driver bit do these black exterior screws require?
These countersunk performance screws use a Pozi drive. A PZ2 bit suits the 3.5mm, 4.0mm, and 5.0mm sizes. Use a PZ3 for the 6.0mm screws. Using the correct bit size reduces cam-out and keeps the recess clean, particularly in longer lengths where more torque is needed.
Do I need to pre-drill before driving these screws into timber?
In most softwoods and medium-density timbers you can drive these directly, as the patented twin cut point is specifically designed to reduce splitting on entry. However, in hardwoods, dense treated timber, or when fixing close to the end or edge of a board, a pilot hole is always worth the extra step.
Are these screws suitable for use with pressure-treated timber?
Yes, these black exterior screws are suitable for use with standard exterior pressure-treated timber. The multi-layer coating, which combines a zinc base layer with an organic top coat, provides a minimum of 1,000 hours salt spray resistance. For timber treated with highly aggressive chemical preservatives, check with the timber supplier whether stainless steel fixings are specified instead.
These countersunk wood screws feature a multi-layer corrosion protection system consisting of a zinc base layer and an organic top coat barrier, achieving a minimum of 1,000 hours salt spray resistance to EN ISO 9227. The dual angle thread geometry is engineered to maximise pull-out resistance in timber. The patented twin cut point reduces driving torque and minimises timber splitting. Ribs under the countersunk head assist clean flush seating without overdriving.
Head Type
Countersunk
Drive Type
Pozi (PZ2 up to 5.0mm, PZ3 for 6.0mm)
Coating
Multi-layer: zinc base layer and organic top coat barrier
Salt Spray Resistance
1,000 hours
Thread Type
Dual angle
Point Type
Patented twin cut
Thread Length
Fully threaded up to 75mm; 70mm thread length on 80mm and above
Available Diameters
3.5mm, 4.0mm, 5.0mm, 6.0mm
Available Lengths
25mm to 150mm
Finish
Black
Size
4.0 x 25mm, 4.0 x 30mm, 4.0 x 40mm, 4.0 x 50mm, 4.0 x 60mm, 4.0 x 70mm, 5.0 x 100mm, 5.0 x 30mm, 5.0 x 40mm, 5.0 x 50mm, 5.0 x 60mm, 5.0 x 70mm, 5.0 x 80mm, 6.0 x 100mm, 6.0 x 130mm, 6.0 x 150mm, 6.0 x 40mm, 6.0 x 50mm, 6.0 x 70mm, 3.5 x 45mm
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