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 4851–4900 of 4,975 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
650-851-048	ID 0.161	OD 0.565	Thickness 0.048	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-852-033	ID 0.161	OD 0.628	Thickness 0.033	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-853-060	ID 0.161	OD 0.641	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-854-040	ID 0.161	OD 0.747	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-858-015	ID 0.162	OD 0.262	Thickness 0.015	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-859-016	ID 0.162	OD 0.267	Thickness 0.016	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-860-036	ID 0.162	OD 0.344	Thickness 0.036	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-861-020	ID 0.162	OD 0.375	Thickness 0.02	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-862-028	ID 0.162	OD 0.38	Thickness 0.028	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-863-046	ID 0.162	OD 0.387	Thickness 0.046	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-864-031	ID 0.162	OD 0.436	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-865-010	ID 0.162	OD 0.439	Thickness 0.01	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-866-049	ID 0.162	OD 0.469	Thickness 0.049	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-867-030	ID 0.162	OD 0.531	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-868-047	ID 0.162	OD 0.582	Thickness 0.047	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-869-048	ID 0.162	OD 0.749	Thickness 0.048	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-872-014	ID 0.163	OD 0.265	Thickness 0.014	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-873-010	ID 0.163	OD 0.281	Thickness 0.01	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-874-025	ID 0.163	OD 0.329	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-875-025	ID 0.163	OD 0.369	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-876-020	ID 0.163	OD 0.372	Thickness 0.02	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-877-045	ID 0.163	OD 0.385	Thickness 0.045	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-878-062	ID 0.163	OD 0.5	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-880-030	ID 0.164	OD 0.249	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-881-010	ID 0.164	OD 0.31	Thickness 0.01	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-882-030	ID 0.164	OD 0.532	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-883-049	ID 0.165	OD 0.276	Thickness 0.049	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-884-031	ID 0.165	OD 0.389	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-885-035	ID 0.165	OD 0.43	Thickness 0.035	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-886-062	ID 0.165	OD 0.435	Thickness 0.062	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-887-046	ID 0.165	OD 0.475	Thickness 0.046	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-888-015	ID 0.166	OD 0.309	Thickness 0.015	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-889-030	ID 0.166	OD 0.313	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-890-035	ID 0.166	OD 0.343	Thickness 0.035	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-891-015	ID 0.166	OD 0.376	Thickness 0.015	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-892-032	ID 0.166	OD 0.38	Thickness 0.032	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-893-025	ID 0.166	OD 0.388	Thickness 0.025	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-894-048	ID 0.166	OD 0.5	Thickness 0.048	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-898-027	ID 0.167	OD 0.269	Thickness 0.027	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-899-040	ID 0.167	OD 0.312	Thickness 0.04	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-900-046	ID 0.167	OD 0.328	Thickness 0.046	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-901-016	ID 0.167	OD 0.368	Thickness 0.016	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-902-038	ID 0.167	OD 0.383	Thickness 0.038	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-903-015	ID 0.167	OD 0.437	Thickness 0.015	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-904-031	ID 0.167	OD 0.453	Thickness 0.031	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-905-028	ID 0.167	OD 0.498	Thickness 0.028	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-908-030	ID 0.168	OD 0.282	Thickness 0.03	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-909-063	ID 0.168	OD 0.391	Thickness 0.063	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-910-060	ID 0.168	OD 0.484	Thickness 0.06	Material Steel Low Carbon	ID TOL +-.005	OD TOL +-.005	Quantity
650-911-033	ID 0.168	OD 0.509	Thickness 0.033	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.