Screw cup washers in electro brass and nickel finishes, available in gauges 6, 8 and 10. Sold in packs of 50 to 60, these give screw heads a clean, finished look on exposed fixings in joinery, furniture and interior fit-out work.
Available options and pricing for Screw Cup Washers, with quantity selectors and a running total
Colour
QTY
Gauge
SKU
Price
QTY
Total
Nickel
55
8 (4.0mm)
SCW8N
£1.09£1.31
—
Electro Brass
55
8 (4.0mm)
8BCUPP
£1.09£1.31
—
Nickel
50
10 (5.0mm)
SCW10N
£1.09£1.31
—
Electro Brass
50
10 (5.0mm)
10BCUPP
£1.09£1.31
—
Nickel
60
6 (3.5mm)
SCW6B
£1.09£1.31
—
Electro Brass
60
6 (3.5mm)
6BCUPP
£1.09£1.31
—
Screw cup washers are one of those small fittings that make a real difference to how a finished job looks. Fitted beneath a countersunk screw head, they create a neat decorative collar that lifts the appearance of any exposed fixing. Whether you are fitting cabinet hinges, attaching timber battens, or fixing down seat boards in a boat, screw cup washers turn a functional fixing into something that looks deliberate and tidy.
Available here in electro brass and nickel finishes, these suit a wide range of interior joinery and furniture applications where the fixing is meant to be seen. The electro brass finish works well with traditional hardwood joinery and cabinet work. Nickel suits more contemporary settings or anywhere a chrome-adjacent look fits the scheme. Both finishes are decorative rather than structural, so these are best kept to dry interior use.
Where Screw Cup Washers Fit Into the Job
The washers are sized to match standard gauge screws: gauge 6 at 3.5mm, gauge 8 at 4.0mm, and gauge 10 at 5.0mm. Getting the gauge right matters here. A washer that is too loose looks sloppy, and one that is too tight will not seat flush against the timber. Match the washer gauge to the screw gauge and you get a clean, even collar every time.
Sold in Trade Packs
These come in box quantities of 50, 55 or 60 depending on the gauge and finish selected, which makes them practical for anyone doing repeat fixing work across a project. Joinery shops, kitchen fitters and shopfitters tend to get through these in volume, so buying in bulk rather than grabbing a small retail card pack is the sensible approach. At the price point offered here, stocking up costs very little.
Simple product, proper finish, does exactly what it should. Sometimes that is all you need.
Pro Tip: Always drop the cup washer onto the screw shank before driving, not after: trying to push it over a screw that is already partially set in timber will buckle the washer collar and ruin the finish.
Screw cup washers are used wherever a countersunk screw needs a decorative finish rather than being hidden or capped. Common applications include cabinet making, interior joinery, furniture assembly, shelf bracket fixing, and timber cladding where fixings are left exposed. They are also widely used in boat building and marine joinery for interior fittings, and in retail fit-out work where a polished appearance on visible fixings is expected.
Best For
Cabinet and furniture making
Interior joinery and fit-out
Exposed timber fixings
Shelf and bracket fixing
Retail and shopfitting work
Boat interior joinery
Available In
Electro brass finish
Nickel finish
Gauge 6 (3.5mm)
Gauge 8 (4.0mm)
Gauge 10 (5.0mm)
Key Features
Decorative collar finish on countersunk screws
Gauge-matched for a flush, even seat
Sold in trade pack quantities
Suits dry interior applications
Consistent finish across the range
Not suitable for: Not suitable for external or wet environments where the decorative finish would corrode. These are not load-bearing washers and should not be used as a substitute for structural repair washers or penny washers.
Slide the cup washer onto the screw shank with the cupped face pointing upward toward the screw head. Drive the screw as normal: the washer will seat neatly against the timber surface as the head pulls down into the cup. Do not overtighten, as this can deform the collar or leave it sitting at an angle.
Select the correct washer gauge to match your screw size: gauge 6 for 3.5mm screws, gauge 8 for 4.0mm, gauge 10 for 5.0mm
Slide the cup washer onto the screw shank before positioning the screw against the workpiece
Ensure the cupped face of the washer is orientated toward the screw head
Drive the screw steadily so the washer seats flat against the timber surface
Stop driving once the screw head sits neatly within the cup without distorting it
What screw sizes do these cup washers fit?
These are available in three gauges: gauge 6 fits 3.5mm screws, gauge 8 fits 4.0mm screws, and gauge 10 fits 5.0mm screws. Always match the washer gauge to the screw gauge for a clean, flush finish.
Can these be used outside?
No. Both the electro brass and nickel finishes are decorative and intended for dry interior use only. Exposure to moisture will cause the finish to deteriorate. For external fixings, look for stainless steel or similarly rated components.
Do screw cup washers work with any countersunk screw head type?
They are designed for use with standard countersunk screw heads. They will not seat correctly under raised countersunk, pan head, or round head screws, where the head profile does not match the cup shape.
Screw cup washers are pressed metal fittings with a countersunk cup profile designed to sit between the screw head and the timber surface. The electro brass finish is a plated decorative coating applied over a steel or zinc alloy base. Nickel finish offers a cooler, silver tone suitable for contemporary joinery. Both finishes are intended for light-duty interior use and are not rated for structural or external applications.
Available Gauges
6 (3.5mm), 8 (4.0mm), 10 (5.0mm)
Available Finishes
Electro Brass, Nickel
Pack Quantity
50, 55 or 60 depending on gauge and finish
Screw Head Type
Countersunk
Application
Interior use only
Weight
N/A
Colour
Electro Brass, Nickel
Box Quantity
50, 60, 55
Gauge
10 (5.0mm), 6 (3.5mm), 8 (4.0mm)
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