Metric Stainless Steel Washers - Corrosion-Resistant Metric Flat Washers

Metric stainless steel washers provide exceptional corrosion resistance and strength for metric fastener assemblies in marine, food processing, chemical, and outdoor environments. Superior Washer & Gasket Corp manufactures metric stainless steel flat washers in 304, 316, and other grades to DIN and ISO standards, with custom metric sizes available.

Our ISO 9001:2015 certified facility supplies metric stainless steel washers from stock inventory and produces custom metric stainless washers for specialized applications. All stainless steel washers are made in the U.S.A. with full material certifications available.

Metric stainless steel washers in 304 and 316 grades
DIN and ISO standard sizes in stock
Custom metric stainless steel flat washers to specification
ISO 9001:2015 certified quality assurance
Made in the U.S.A.

Showing 201–250 of 4,971 products

SKU	ID (MM)	OD (MM)	Thickness (MM)	Material	ID MM TOL	OD MM TOL	Quantity
630-2316	ID (MM) 2.718	OD (MM) 4.75	Thickness (MM) 0.711	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2317	ID (MM) 2.718	OD (MM) 6.858	Thickness (MM) 0.686	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2318	ID (MM) 2.718	OD (MM) 7.95	Thickness (MM) 0.991	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2319	ID (MM) 2.718	OD (MM) 9.525	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2320	ID (MM) 2.743	OD (MM) 7.823	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2321	ID (MM) 2.743	OD (MM) 7.925	Thickness (MM) 0.635	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2322	ID (MM) 2.743	OD (MM) 8.28	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2323	ID (MM) 2.769	OD (MM) 4.47	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2324	ID (MM) 2.769	OD (MM) 4.75	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2325	ID (MM) 2.769	OD (MM) 4.851	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2326	ID (MM) 2.769	OD (MM) 6.071	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2327	ID (MM) 2.769	OD (MM) 6.274	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2328	ID (MM) 2.769	OD (MM) 6.274	Thickness (MM) 0.635	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2330	ID (MM) 2.819	OD (MM) 4.623	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2331	ID (MM) 2.819	OD (MM) 11.1	Thickness (MM) 1.549	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2332	ID (MM) 2.819	OD (MM) 12.7	Thickness (MM) 1.27	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2333	ID (MM) 2.819	OD (MM) 13.487	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2334	ID (MM) 2.845	OD (MM) 6.248	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2335	ID (MM) 2.845	OD (MM) 6.35	Thickness (MM) 0.965	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2336	ID (MM) 2.845	OD (MM) 6.909	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2337	ID (MM) 2.845	OD (MM) 7.595	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2338	ID (MM) 2.845	OD (MM) 7.849	Thickness (MM) 0.533	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2339	ID (MM) 2.845	OD (MM) 8.179	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2341	ID (MM) 2.896	OD (MM) 4.775	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2342	ID (MM) 2.896	OD (MM) 6.223	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2343	ID (MM) 2.896	OD (MM) 6.248	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2344	ID (MM) 2.896	OD (MM) 6.426	Thickness (MM) 1.549	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2345	ID (MM) 2.896	OD (MM) 7.163	Thickness (MM) 0.737	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2346	ID (MM) 2.896	OD (MM) 7.62	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2347	ID (MM) 2.896	OD (MM) 7.798	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2348	ID (MM) 2.896	OD (MM) 7.925	Thickness (MM) 0.457	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2349	ID (MM) 2.896	OD (MM) 9.347	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2350	ID (MM) 2.896	OD (MM) 9.5	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2352	ID (MM) 2.921	OD (MM) 5.004	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2353	ID (MM) 2.921	OD (MM) 5.004	Thickness (MM) 0.813	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2354	ID (MM) 2.946	OD (MM) 6.274	Thickness (MM) 0.483	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2355	ID (MM) 2.946	OD (MM) 6.35	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2356	ID (MM) 2.946	OD (MM) 6.858	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2357	ID (MM) 2.946	OD (MM) 8.179	Thickness (MM) 0.559	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2358	ID (MM) 2.946	OD (MM) 11.049	Thickness (MM) 0.635	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2359	ID (MM) 2.946	OD (MM) 12.7	Thickness (MM) 0.559	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2360	ID (MM) 2.972	OD (MM) 4.318	Thickness (MM) 0.635	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2361	ID (MM) 2.972	OD (MM) 4.851	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2362	ID (MM) 2.972	OD (MM) 5.309	Thickness (MM) 0.787	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2363	ID (MM) 2.972	OD (MM) 8.712	Thickness (MM) 0.889	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2364	ID (MM) 2.972	OD (MM) 8.89	Thickness (MM) 0.965	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2366	ID (MM) 2.997	OD (MM) 4.445	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2367	ID (MM) 2.997	OD (MM) 5.359	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2368	ID (MM) 3.023	OD (MM) 5.08	Thickness (MM) 0.483	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2369	ID (MM) 3.023	OD (MM) 8.357	Thickness (MM) 0.813	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity

Metric Stainless Steel Washer Frequently Asked Questions

Below are answers to some of the most common questions about metric stainless steel washers.

What are metric stainless steel washers?
Metric stainless steel washers are flat washers manufactured from austenitic stainless steel (typically Type 301, 302, or 304), dimensioned in millimeters for metric fastener assemblies. They offer excellent corrosion resistance without coatings or plating, making them the preferred metric washer choice for outdoor, marine, food service, pharmaceutical, and other corrosive environments where metric fasteners are specified.

What stainless steel grade do your metric washers use?
Superior Washer metric stainless steel washers are manufactured from Type 301, Type 302, or Type 304 austenitic stainless steel. All three grades provide reliable corrosion resistance for most applications, with Type 301 offering higher strength for formed or spring-style configurations. For elevated chloride environments such as marine or coastal exposure, metric 316 stainless steel washers offer superior chloride resistance and can be produced to order.

What metric sizes are your stainless steel washers available in?
Superior Washer stocks metric stainless steel washers in standard DIN 125, DIN 9021, and ISO 7089/7090 sizes to fit M2 through M30 and larger metric fasteners. The catalog covers a broad range of thicknesses for both narrow and wide-OD metric washer configurations. Custom metric sizes are available to order.

When should I use metric stainless steel washers instead of metric zinc-plated steel?
Metric stainless steel washers provide inherent, permanent corrosion resistance that does not depend on a coating. Metric zinc-plated steel washers will corrode when the zinc is scratched, worn, or exposed to chlorides or prolonged moisture. For outdoor, marine, food processing, medical, or long-term service applications, stainless steel is the correct choice.

Can you produce custom metric stainless steel washers?
Yes. We manufacture custom metric stainless steel washers to your exact millimeter OD, ID, and thickness specifications. Contact us via the Quick Quote form or call NY (631) 273-8282 or SC (803) 366-3250.

Are your metric stainless steel washers made in the USA?
Yes. All metric stainless steel washers are manufactured in the United States under our ISO 9001:2015 certified Quality Management System. Material certifications are available upon request.

Need a different metric material? We also stock brass, copper, nylon, and more in metric sizing. Browse the full flat washers catalog to compare all sizing and material options.