Black phosphate coarse thread drywall screws with bugle head and Phillips No.2 recess. Designed for fixing plasterboard to timber stud work. Available in a wide range of sizes and box quantities to suit any job.
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Available options and pricing for Drywall Screws - Coarse Black - Box, with quantity selectors and a running total
Size
QTY
SKU
Price
QTY
Total
3.5 x 25mm
200
200DWS25BP
£0.98£1.18
—
3.5 x 25mm
1000
DWS25BP
£3.98£4.78
—
3.5 x 32mm
200
200DWS32BP
£1.09£1.31
—
3.5 x 32mm
1000
DWS32BP
£4.13£4.96
—
3.5 x 35mm
1000
00035DRYC
£6.68£8.02
—
3.5 x 38mm
200
200DWS38BP
£1.25£1.50
—
3.5 x 38mm
1000
DWS38BP
£4.69£5.63
—
3.5 x 42mm
200
200DWS42BP
£1.39£1.67
—
3.5 x 42mm
1000
DWS42BP
£5.19£6.23
—
3.5 x 45mm
200
200DWS45BP-FF
£1.98£2.38
—
3.5 x 45mm
1000
DWS45BP-FF
£7.42£8.90
—
3.5 x 50mm
200
200DWS50BP
£1.57£1.88
—
3.5 x 50mm
1000
DWS50BP
£5.94£7.13
—
3.5 x 55mm
500
DWS55BP-FF
£4.58£5.50
—
3.5 x 60mm
500
DWS60BP-FF
£5.19£6.23
—
4.2 x 65mm
200
200DWS65BP
£2.73£3.28
—
4.2 x 65mm
500
DWS65BP
£5.09£6.11
—
4.2 x 75mm
200
200DWS75BP
£3.22£3.86
—
4.2 x 75mm
500
DWS75BP
£5.63£6.76
—
4.2 x 80mm
200
DWS80BP-FF
£3.98£4.78
—
4.2 x 90mm
200
DWS90BP-FF
£4.91£5.89
—
4.2 x 100mm
100
DWS100BP-FF
£2.58£3.10
—
4.2 x 100mm
500
DWS100BP
£9.68£11.62
—
4.2 x 110mm
200
DWS110BP-FF
£6.96£8.35
—
4.2 x 120mm
200
DWS120BP-FF
£7.98£9.58
—
4.8 x 125mm
200
DWS125BP-FF
£9.28£11.14
—
4.8 x 130mm
200
DWS130BP-FF
£9.38£11.26
—
4.8 x 140mm
200
DWS140BP-FF
£9.48£11.38
—
4.8 x 150mm
200
DWS150BP-FF
£9.48£11.38
—
4.8 x 160mm
200
DWS160BP-FF
£12.98£15.58
—
4.8 x 170mm
200
DWS170BP-FF
£13.90£16.68
—
4.8 x 180mm
200
DWS180BP-FF
£14.98£17.98
—
Coarse black drywall screws are the standard fixing for securing plasterboard to timber stud work. If you’ve ever tried to use the wrong screw for the job, you’ll know exactly why these exist. The coarse thread bites into timber hard and fast, giving you the grip you need without the board moving around while you work.
These screws have a bugle head profile, which spreads the load as the screw seats itself. That means you get a clean countersink just below the surface without blowing out the paper face of the board. Get the depth right and your skim or finish coat goes straight over with no fuss.
The Phillips No.2 recess gives a positive, reliable drive. Pair these with a drywall screwdriver or a drill with a depth-stop collar and you’ll be driving screws cleanly all day. The 25 degree point is sharp enough to pierce the board and bite into timber without pre-drilling, which keeps things moving on site.
Where Coarse Black Drywall Screws Fit In
The black phosphate coating provides a degree of corrosion resistance and helps reduce surface glare when you’re working under site lighting. More practically, it gives the screw a slightly rougher texture that helps it key into the board face before it fully seats.
These screws carry an A1 fire classification, which is worth noting for projects where the specification requires it. Not every screw on the market can say the same.
Available in a wide range of sizes from 3.5 x 25mm right through to 4.8 x 180mm, and in box quantities from 100 up to 1000, so whether you’re fitting out one room or boarding an entire floor, there’s a pack size that makes sense for the job.
Pro Tip: Set your drywall screwdriver clutch so the screw head sits just below the surface without tearing the paper face. Too shallow and it fouls your finish coat; too deep and you've lost your fix.
These screws are used day in, day out for fixing plasterboard to timber stud and ceiling joist work in new builds, refurbishments, and partition installations. The coarse thread is specifically designed for timber substrates, giving a much stronger pull-out resistance than a fine thread screw in the same material. They are the go-to choice for drylining contractors, general builders, and first-fix joiners working on stud walls, timber frame systems, and ceiling boards.
Best For
Fixing plasterboard to timber stud work
Ceiling board installation onto timber joists
Partition wall construction
Timber frame drylining
Key Properties
Coarse thread for maximum grip in timber
Bugle head to protect board surface
Phillips No.2 recess
25 degree super sharp point
Black phosphate finish
A1 fire classification
Available Sizes
3.5 x 25mm to 3.5 x 60mm
4.2 x 65mm to 4.2 x 100mm
4.8 x 125mm to 4.8 x 180mm
Box quantities: 100, 200, 500, 1000
Not suitable for: Not suitable for fixing plasterboard to metal stud or track systems. For metal framing, use fine thread drywall screws instead. Coarse thread screws will not grip correctly in thin gauge metal sections.
Drive these with a drywall screwdriver or a drill fitted with a depth-stop collar set to seat the head just below the board surface. Avoid over-driving, which tears the paper face and reduces the holding strength of the fix. Space screws at 150mm to 200mm centres on perimeter boards and 300mm centres in the field, or follow the project specification.
Select the correct screw length for your board thickness and timber depth
Set the clutch or depth stop on your drywall screwdriver to just below the board surface
Position the screw on the board face at the correct spacing for your specification
Drive firmly until the bugle head seats just below the paper face without tearing it
Check each screw is flush or fractionally countersunk before moving on
What is the difference between coarse and fine thread drywall screws?
Coarse thread screws are designed for timber substrates. The wider thread pitch bites into wood fibres and gives strong pull-out resistance. Fine thread screws are designed for metal stud and track systems, where a coarse thread would strip out rather than grip. Use coarse for timber, fine for metal.
What size drywall screw should I use for standard plasterboard on timber studs?
For 12.5mm single-layer plasterboard on timber, a 3.5 x 38mm or 3.5 x 42mm screw is the typical choice. This gives enough thread engagement into the timber without the screw poking through the other side of a narrow stud. For double-layer board or thicker sections, step up to a longer size accordingly.
Black phosphate coarse thread drywall screws manufactured with a bugle head profile and Phillips No.2 recess. The 25 degree hardened point allows direct penetration into plasterboard and timber without pre-drilling. The coarse thread pattern provides high pull-out resistance in softwood and engineered timber substrates. Carry an A1 non-combustible fire classification.
3.5 x 25mm, 3.5 x 50mm, 3.5 x 32mm, 3.5 x 35mm, 3.5 x 38mm, 3.5 x 42mm, 3.5 x 45mm, 3.5 x 55mm, 3.5 x 60mm, 4.2 x 100mm, 4.2 x 110mm, 4.2 x 120mm, 4.2 x 65mm, 4.2 x 75mm, 4.2 x 80mm, 4.2 x 90mm, 4.8 x 125mm, 4.8 x 130mm, 4.8 x 140mm, 4.8 x 150mm, 4.8 x 160mm, 4.8 x 170mm, 4.8 x 180mm
Box Quantity
100, 1000, 200, 500
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