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 201–250 of 4,975 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
650-1227-050	ID 0.191	OD 0.48	Thickness 0.05	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1228-050	ID 0.191	OD 0.483	Thickness 0.05	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1229-050	ID 0.191	OD 0.487	Thickness 0.05	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1230-031	ID 0.191	OD 0.498	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1231-040	ID 0.191	OD 0.501	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1232-047	ID 0.191	OD 0.56	Thickness 0.047	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1233-041	ID 0.191	OD 0.563	Thickness 0.041	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1234-063	ID 0.191	OD 0.62	Thickness 0.063	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1235-040	ID 0.191	OD 0.624	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1236-093	ID 0.191	OD 0.625	Thickness 0.093	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1237-033	ID 0.191	OD 0.627	Thickness 0.033	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1238-030	ID 0.191	OD 0.653	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1239-047	ID 0.191	OD 0.689	Thickness 0.047	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1240-060	ID 0.191	OD 0.735	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1241-093	ID 0.191	OD 0.751	Thickness 0.093	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1242-061	ID 0.191	OD 0.752	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1243-036	ID 0.191	OD 0.87	Thickness 0.036	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1244-085	ID 0.191	OD 0.874	Thickness 0.085	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1245-033	ID 0.191	OD 0.876	Thickness 0.033	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1249-025	ID 0.192	OD 0.251	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1250-031	ID 0.192	OD 0.281	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1251-061	ID 0.192	OD 0.311	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1252-040	ID 0.192	OD 0.312	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1253-031	ID 0.192	OD 0.313	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1254-047	ID 0.192	OD 0.317	Thickness 0.047	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1255-040	ID 0.192	OD 0.321	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1256-010	ID 0.192	OD 0.342	Thickness 0.01	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1257-060	ID 0.192	OD 0.345	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1258-057	ID 0.192	OD 0.355	Thickness 0.057	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1259-062	ID 0.192	OD 0.366	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1260-020	ID 0.192	OD 0.373	Thickness 0.02	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1261-030	ID 0.192	OD 0.375	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1262-040	ID 0.192	OD 0.394	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1263-088	ID 0.192	OD 0.436	Thickness 0.088	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1264-030	ID 0.192	OD 0.44	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1265-125	ID 0.192	OD 0.443	Thickness 0.125	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1266-044	ID 0.192	OD 0.467	Thickness 0.044	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1267-046	ID 0.192	OD 0.506	Thickness 0.046	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1268-090	ID 0.192	OD 0.592	Thickness 0.09	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1269-030	ID 0.192	OD 0.717	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1270-030	ID 0.192	OD 0.74	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1271-030	ID 0.192	OD 0.745	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1272-061	ID 0.192	OD 0.75	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1273-060	ID 0.192	OD 0.936	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1276-010	ID 0.193	OD 0.327	Thickness 0.01	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1277-061	ID 0.193	OD 0.357	Thickness 0.061	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1278-041	ID 0.193	OD 0.362	Thickness 0.041	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1279-062	ID 0.193	OD 0.445	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1280-092	ID 0.193	OD 0.469	Thickness 0.092	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-1281-060	ID 0.193	OD 0.492	Thickness 0.06	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.