Low Carbon Steel Flat Washers - General-Purpose Flat Washers

Low carbon steel flat washers are the most widely used washers in industrial and commercial fastener assemblies, providing economical load distribution, vibration resistance, and surface protection. Superior Washer & Gasket Corp manufactures steel flat washers in a comprehensive range of standard sizes and produces custom steel washers to your dimensional requirements.

Our ISO 9001:2015 certified flat washer manufacturing ensures consistent quality across all carbon steel washer orders. We maintain broad inventory of steel flat washers for fast delivery and offer zinc-plated, hot-dip galvanized, and other surface finish options-all made in the U.S.A.

Low carbon steel for general-purpose load distribution
Comprehensive standard size inventory in stock
Custom steel flat washers available
Multiple surface finish options
ISO 9001:2015 certified; made in the U.S.A.

Showing 451–500 of 4,975 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
650-1504-043	ID 0.204	OD 0.415	Thickness 0.043	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1505-045	ID 0.204	OD 0.431	Thickness 0.045	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1506-025	ID 0.204	OD 0.437	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1506-031	ID 0.204	OD 0.437	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1507-032	ID 0.204	OD 0.44	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1508-034	ID 0.204	OD 0.469	Thickness 0.034	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1509-104	ID 0.204	OD 0.482	Thickness 0.104	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1510-060	ID 0.204	OD 0.492	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1511-040	ID 0.204	OD 0.498	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1512-060	ID 0.204	OD 0.5	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1513-031	ID 0.204	OD 0.532	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1514-062	ID 0.204	OD 0.562	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1515-048	ID 0.204	OD 0.592	Thickness 0.048	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1516-032	ID 0.204	OD 0.625	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1517-061	ID 0.204	OD 0.643	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1518-059	ID 0.204	OD 0.657	Thickness 0.059	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1519-051	ID 0.204	OD 0.686	Thickness 0.051	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-152-031	ID 0.099	OD 0.311	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1520-040	ID 0.204	OD 0.731	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1521-061	ID 0.204	OD 0.752	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1527-030	ID 0.205	OD 0.327	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1529-047	ID 0.205	OD 0.375	Thickness 0.047	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1530-040	ID 0.205	OD 0.406	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1531-041	ID 0.205	OD 0.409	Thickness 0.041	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1532-060	ID 0.205	OD 0.415	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1533-032	ID 0.205	OD 0.437	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1534-024	ID 0.205	OD 0.44	Thickness 0.024	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1534-060	ID 0.205	OD 0.44	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1535-041	ID 0.205	OD 0.468	Thickness 0.041	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1536-033	ID 0.205	OD 0.497	Thickness 0.033	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1537-060	ID 0.205	OD 0.5	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1538-040	ID 0.205	OD 0.562	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1539-053	ID 0.205	OD 0.59	Thickness 0.053	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1540-063	ID 0.205	OD 0.62	Thickness 0.063	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1541-057	ID 0.205	OD 0.623	Thickness 0.057	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1542-040	ID 0.205	OD 0.625	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1543-060	ID 0.205	OD 0.629	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1544-029	ID 0.205	OD 0.75	Thickness 0.029	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1546-062	ID 0.205	OD 0.875	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1553-048	ID 0.206	OD 0.312	Thickness 0.048	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1554-032	ID 0.206	OD 0.343	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1555-031	ID 0.206	OD 0.375	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1556-060	ID 0.206	OD 0.38	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1557-060	ID 0.206	OD 0.395	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1558-046	ID 0.206	OD 0.406	Thickness 0.046	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1559-040	ID 0.206	OD 0.41	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1560-032	ID 0.206	OD 0.437	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1560-062	ID 0.206	OD 0.437	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1561-048	ID 0.206	OD 0.44	Thickness 0.048	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1562-047	ID 0.206	OD 0.465	Thickness 0.047	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity

Low Carbon Steel Flat Washer Frequently Asked Questions

Below are answers to some of the most common questions about low carbon steel flat washers.

What are low carbon steel flat washers?
Low carbon steel flat washers are manufactured from low carbon steel (typically 1008 through 1020 grade), the most common and economical washer material for general-purpose fastener applications. Low carbon steel offers good formability, consistent dimensional quality, and adequate strength for the vast majority of industrial, construction, and mechanical assembly applications.

What finishes are available for low carbon steel flat washers?
Low carbon steel is susceptible to corrosion and is typically supplied with a protective finish. Common finishes include zinc plating (clear or yellow), hot-dip galvanizing, phosphate and oil, black oxide, and plain (oiled). For corrosive environments, zinc plating or stainless steel is recommended. Contact us to specify your finish requirement.

What is the difference between low carbon steel and mild steel washers?
The terms are essentially interchangeable. Mild steel and low carbon steel both refer to steels with a carbon content generally below 0.30%, most commonly in the 1008-1020 range for washer applications. Both terms describe the same class of material.

Can you make custom low carbon steel flat washers?
Yes. Superior Washer manufactures custom low carbon steel washers to your OD, ID, and thickness specifications, in a wide range of finishes. Contact us via the Quick Quote form or by phone.

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

Low carbon steel is our most economical general-purpose washer material. Browse the full flat washers catalog to see all materials available for your application.