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 1–50 of 4,971 products

SKU	ID (MM)	OD (MM)	Thickness (MM)	Material	ID MM TOL	OD MM TOL	Quantity
630-2082	ID (MM) 1.168	OD (MM) 4.826	Thickness (MM) 0.737	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2084	ID (MM) 1.245	OD (MM) 2.388	Thickness (MM) 0.203	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2086	ID (MM) 1.27	OD (MM) 2.718	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2088	ID (MM) 1.346	OD (MM) 2.819	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2089	ID (MM) 1.346	OD (MM) 3.835	Thickness (MM) 0.203	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2091	ID (MM) 1.372	OD (MM) 2.819	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2095	ID (MM) 1.549	OD (MM) 3.175	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2096	ID (MM) 1.549	OD (MM) 3.531	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2097	ID (MM) 1.6	OD (MM) 2.769	Thickness (MM) 0.356	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2098	ID (MM) 1.6	OD (MM) 3.175	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2099	ID (MM) 1.6	OD (MM) 3.962	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2100	ID (MM) 1.6	OD (MM) 3.988	Thickness (MM) 0.533	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2101	ID (MM) 1.6	OD (MM) 6.121	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2103	ID (MM) 1.6	OD (MM) 6.35	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2104	ID (MM) 1.6	OD (MM) 7.899	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2105	ID (MM) 1.626	OD (MM) 3.962	Thickness (MM) 0.762	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2107	ID (MM) 1.651	OD (MM) 2.489	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2108	ID (MM) 1.651	OD (MM) 2.769	Thickness (MM) 0.356	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2109	ID (MM) 1.651	OD (MM) 3.15	Thickness (MM) 0.432	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2110	ID (MM) 1.651	OD (MM) 3.912	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2111	ID (MM) 1.651	OD (MM) 6.248	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2112	ID (MM) 1.651	OD (MM) 7.823	Thickness (MM) 0.483	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2113	ID (MM) 1.651	OD (MM) 7.874	Thickness (MM) 0.457	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2115	ID (MM) 1.702	OD (MM) 3.175	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2116	ID (MM) 1.702	OD (MM) 3.277	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2117	ID (MM) 1.702	OD (MM) 6.121	Thickness (MM) 0.508	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2118	ID (MM) 1.702	OD (MM) 6.274	Thickness (MM) 0.66	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2119	ID (MM) 1.702	OD (MM) 7.899	Thickness (MM) 0.457	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2120	ID (MM) 1.727	OD (MM) 2.997	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2121	ID (MM) 1.727	OD (MM) 3.226	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2122	ID (MM) 1.727	OD (MM) 4.75	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2123	ID (MM) 1.727	OD (MM) 4.75	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2124	ID (MM) 1.727	OD (MM) 4.75	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2125	ID (MM) 1.727	OD (MM) 6.35	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2126	ID (MM) 1.727	OD (MM) 6.35	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2127	ID (MM) 1.727	OD (MM) 6.35	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2128	ID (MM) 1.727	OD (MM) 7.925	Thickness (MM) 0.127	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2129	ID (MM) 1.727	OD (MM) 7.925	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2130	ID (MM) 1.727	OD (MM) 7.925	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2132	ID (MM) 1.753	OD (MM) 3.556	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2133	ID (MM) 1.753	OD (MM) 6.299	Thickness (MM) 0.381	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2135	ID (MM) 1.803	OD (MM) 3.531	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2136	ID (MM) 1.829	OD (MM) 4.75	Thickness (MM) 0.737	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2137	ID (MM) 1.829	OD (MM) 7.899	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2138	ID (MM) 1.854	OD (MM) 2.718	Thickness (MM) 0.356	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2139	ID (MM) 1.854	OD (MM) 8.992	Thickness (MM) 0.813	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2141	ID (MM) 1.905	OD (MM) 2.921	Thickness (MM) 0.406	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2142	ID (MM) 1.93	OD (MM) 2.997	Thickness (MM) 0.305	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2143	ID (MM) 1.93	OD (MM) 4.013	Thickness (MM) 0.254	Material Stainless Steel	ID MM TOL 0.127	OD MM TOL 0.127	Quantity
630-2144	ID (MM) 1.93	OD (MM) 4.166	Thickness (MM) 0.66	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.