.jpg?ts=1755911852 "Stainless Steel Cup Washers")
Stainless Steel Cup Washers
What are stainless steel cup washers? Stainless steel cup washers are recessed washers that cradle a countersunk or round screw head for a finished look while protecting the surface, common in cabinetry and trim. Made from 18-8 and 316 stainless, plus A4 metric, they resist rust in wet, coastal, and outdoor use.
How cup washers finish and protect a screw head
A cup washer, also called a finishing washer, has a recessed cup that seats a countersunk or oval screw head, giving a clean, professional appearance while spreading load and protecting the wood or panel from the turning screw. They are a staple in cabinetry, furniture, marine trim, and any visible screw where a bare head would look unfinished or mar the surface. Match the cup to the screw head style and the grade to the environment, with 316 or A4 for coastal exposure.
Why choose stainless steel cup washers
- Finished look: recessed cup seats the screw head cleanly.
- Surface protection: shields wood and panels from the turning screw.
- Corrosion resistance: 18-8, 316, and A4 hold up in wet and outdoor use.
- Decorative: bright finish for visible trim and cabinetry.
Common applications for stainless cup washers
- Cabinetry, furniture, and trim
- Visible screws needing a finished look
- Marine trim and fittings (316 or A4)
- Panel and fixture mounting
Pair these with countersunk or oval-head stainless wood screws, and browse every size and finish on the main cup washers category.
Stainless Steel Cup Washers FAQ
What grades do cup washers come in?
18-8 and 316 stainless, plus metric A4. Use 316 or A4 for coastal and saltwater exposure.
What screws work with cup washers?
Countersunk flat and oval head screws seat into the recessed cup for a clean, finished appearance.
Are cup washers the same as finishing washers?
Yes. Cup washer and finishing washer both describe the recessed washer that cradles a countersunk screw head.