Cup washers are raised, dish-shaped washers that sit under a countersunk screw head. The screw head sits inside the cup, spreading the load and giving a neat, finished look without countersinking the material. They are used on timber, panels, trims and fittings.
Linkworld supplies cup washers in 304 and 316 stainless steel, brass and aluminium, in gauge and metric sizes. Size, material and finish can be made to your drawing or sample, and we pack in bulk cartons or in your own branded packs.
Cup Washer Specifications
| Specification | Configuration |
|---|---|
| Product | Cup washer / countersunk screw washer |
| Material | 304 or 316 stainless steel; brass; aluminium |
| Gauge sizes | 6g, 8g, 10g, 12g and 14g |
| Metric sizes | Inside diameter 3 to 25 mm |
| Type | Pressed or solid cup washers |
| Finish | Plain stainless, brass or natural aluminium |
| Packing | Bulk cartons, own-brand boxes and small packs |
Other sizes and finishes can be made to drawing or sample.
Where Cup Washers Are Used
- Cabinetry and furniture visible screw fixings
- Boats and caravans panels and trims, with stainless or brass
- Timber panels and trims where the material is too thin to countersink
- Signs and displays neat fixings on show
Choosing Cup Washers
- Match the screw: the cup washer size must match the screw gauge or diameter.
- Material: 316 stainless for marine and outdoor use; brass for a decorative finish; aluminium for light fittings.
- Type: pressed cup washers are lighter; solid cup washers give a heavier, premium look.
Common Purchasing Mistakes
Wrong gauge. A cup washer that is too big or too small will not seat the screw head properly.
Mixing metals. Match the washer and screw material to avoid staining and corrosion.
Ordering by inside diameter only. Give the screw gauge or the full dimensions.
What to Send with Your Enquiry
| Item | What to tell us |
|---|---|
| Size | Screw gauge or metric size; a drawing for special sizes |
| Material | Stainless 304 / 316, brass or aluminium |
| Type | Pressed or solid |
| Quantity | Quantity for each size |
| Packing | Bulk carton, own-brand box or small pack |
| Destination | Destination port |
Packing and Supply for Distributors
We pack cup washers in bulk cartons for trade distribution, or in your own branded boxes, buckets and small packs for retail. Each size can carry its own label. For customers who plan several deliveries through the year, we offer free warehouse storage and staged shipments.
Work With Linkworld
Linkworld has more than 20 years of fastener export experience and runs its own cold heading workshop. Our own QC team checks dimensions, cup form and finish in our inspection room before every shipment. We make washers to drawing or sample, so special sizes and materials are welcome.
Frequently Asked Questions
What is a cup washer used for?
It sits under a countersunk screw head to spread the load and give a neat, flush finish without countersinking.
What sizes do cup washers come in?
6g to 14g for gauge screws, and inside diameters from 3 to 25 mm for metric sizes.
Which material should I choose?
316 stainless for marine and outdoor use, 304 for general use, brass for decorative work.
What is the difference between pressed and solid cup washers?
Pressed cup washers are formed from sheet and are lighter. Solid cup washers are thicker and heavier.
Can you supply cup washers in our own packs?
Yes. We pack in bulk cartons or in your own branded small packs.
Looking for cup washers in your own sizes or packs?
Send the sizes, finish, quantity and packing you need through the enquiry form below, and our team will reply with the options that fit your range.
Send an Enquiry
Send a drawing, sample or clear reference photo. Add the quantity and application if available, and we can start from the information you already have.