Home | Metric Stainless Steel Washers - Corrosion-Resistant Metric Flat Washers

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 4951–4971 of 4,971 products

SKU ID (MM) OD (MM) Thickness (MM) Material ID MM TOL OD MM TOL Quantity

630-7811

ID (MM) 35.433
OD (MM) 69.85
Thickness (MM) 1.245
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7814

ID (MM) 35.789
OD (MM) 47.625
Thickness (MM) 0.737
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7820

ID (MM) 37.313
OD (MM) 50.775
Thickness (MM) 0.533
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7821

ID (MM) 37.313
OD (MM) 50.825
Thickness (MM) 0.533
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7822

ID (MM) 37.643
OD (MM) 58.395
Thickness (MM) 1.829
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7824

ID (MM) 38.202
OD (MM) 57.074
Thickness (MM) 1.93
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7825

ID (MM) 38.202
OD (MM) 63.5
Thickness (MM) 0.254
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7827

ID (MM) 38.252
OD (MM) 58.547
Thickness (MM) 2.616
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7832

ID (MM) 39.573
OD (MM) 56.413
Thickness (MM) 1.219
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7833

ID (MM) 39.7
OD (MM) 51.841
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7834

ID (MM) 39.7
OD (MM) 61.087
Thickness (MM) 0.787
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7838

ID (MM) 41.3
OD (MM) 69.825
Thickness (MM) 2.972
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7840

ID (MM) 41.707
OD (MM) 60.325
Thickness (MM) 0.813
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7841

ID (MM) 42.367
OD (MM) 60.681
Thickness (MM) 0.838
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7851

ID (MM) 44.526
OD (MM) 60.35
Thickness (MM) 2.337
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7855

ID (MM) 45.974
OD (MM) 63.5
Thickness (MM) 0.127
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7862

ID (MM) 50.876
OD (MM) 76.2
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7863

ID (MM) 51.003
OD (MM) 69.799
Thickness (MM) 1.473
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7865

ID (MM) 51.054
OD (MM) 69.85
Thickness (MM) 1.524
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7870

ID (MM) 57.861
OD (MM) 76.225
Thickness (MM) 0.762
Material Stainless Steel
ID MM TOL 0.127
OD MM TOL 0.127
Quantity

630-7871

ID (MM) 63.551
OD (MM) 88.875
Thickness (MM) 0.787
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.