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 251–300 of 4,975 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
650-1282-036	ID 0.193	OD 0.496	Thickness 0.036	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1283-057	ID 0.193	OD 0.501	Thickness 0.057	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1284-027	ID 0.193	OD 0.558	Thickness 0.027	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1285-031	ID 0.193	OD 0.56	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1286-058	ID 0.193	OD 0.585	Thickness 0.058	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1288-016	ID 0.193	OD 0.624	Thickness 0.016	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1290-041	ID 0.193	OD 0.876	Thickness 0.041	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1291-031	ID 0.194	OD 0.268	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1292-035	ID 0.194	OD 0.292	Thickness 0.035	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1293-032	ID 0.194	OD 0.308	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1294-032	ID 0.194	OD 0.311	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1295-015	ID 0.194	OD 0.312	Thickness 0.015	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1296-046	ID 0.194	OD 0.321	Thickness 0.046	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1297-062	ID 0.194	OD 0.327	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1298-061	ID 0.194	OD 0.328	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1299-030	ID 0.194	OD 0.356	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1300-031	ID 0.194	OD 0.373	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1301-015	ID 0.194	OD 0.375	Thickness 0.015	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1302-016	ID 0.194	OD 0.376	Thickness 0.016	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1303-024	ID 0.194	OD 0.392	Thickness 0.024	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1304-076	ID 0.194	OD 0.406	Thickness 0.076	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1305-025	ID 0.194	OD 0.42	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1306-034	ID 0.194	OD 0.43	Thickness 0.034	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1307-031	ID 0.194	OD 0.431	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1308-025	ID 0.194	OD 0.438	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1309-046	ID 0.194	OD 0.439	Thickness 0.046	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1310-018	ID 0.194	OD 0.483	Thickness 0.018	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1311-022	ID 0.194	OD 0.492	Thickness 0.022	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1312-032	ID 0.194	OD 0.495	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1313-060	ID 0.194	OD 0.53	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1314-025	ID 0.194	OD 0.556	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1315-030	ID 0.194	OD 0.558	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1316-061	ID 0.194	OD 0.56	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1318-060	ID 0.194	OD 0.72	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1319-040	ID 0.194	OD 0.812	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1320-028	ID 0.195	OD 0.32	Thickness 0.028	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1321-016	ID 0.195	OD 0.325	Thickness 0.016	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1322-040	ID 0.195	OD 0.342	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1323-036	ID 0.195	OD 0.361	Thickness 0.036	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1324-005	ID 0.195	OD 0.365	Thickness 0.005	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1325-035	ID 0.195	OD 0.375	Thickness 0.035	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1325-060	ID 0.195	OD 0.375	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1326-030	ID 0.195	OD 0.376	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1327-058	ID 0.195	OD 0.38	Thickness 0.058	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1328-044	ID 0.195	OD 0.382	Thickness 0.044	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1329-025	ID 0.195	OD 0.409	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1330-031	ID 0.195	OD 0.43	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1331-050	ID 0.195	OD 0.438	Thickness 0.05	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1332-040	ID 0.195	OD 0.454	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1333-051	ID 0.195	OD 0.5	Thickness 0.051	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.