High Carbon Steel Flat Washers - Hardened & Precision Stamped

High carbon steel flat washers provide increased hardness and wear resistance compared to low carbon alternatives, making them ideal for applications with high loads, hardened fasteners, or abrasive environments. Superior Washer & Gasket Corp manufactures high carbon steel washers in standard and custom sizes for industrial, automotive, and OEM applications.

Our ISO 9001:2015 certified facility produces steel flat washers in low carbon, high carbon, and specialty steel grades to your exact dimensional requirements. Custom high carbon steel washers are available from prototype to production volume, made in the U.S.A. with full material traceability.

High carbon steel for increased hardness and wear resistance
Standard and custom sizes available
Suitable for high-load and hardened fastener applications
ISO 9001:2015 certified quality control
Made in the U.S.A.

Showing 301–350 of 479 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
460-370-125	ID 0.786	OD 1.522	Thickness 0.125	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-371-122	ID 0.789	OD 1.122	Thickness 0.122	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-372-005	ID 0.793	OD 1.187	Thickness 0.005	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-373-010	ID 0.816	OD 1.309	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-374-130	ID 0.83	OD 1.375	Thickness 0.13	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-375-010	ID 0.832	OD 1.313	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-376-005	ID 0.89	OD 0.988	Thickness 0.005	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-377-042	ID 0.894	OD 1.092	Thickness 0.042	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-378-020	ID 0.91	OD 2.0	Thickness 0.02	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-379-005	ID 0.94	OD 1.236	Thickness 0.005	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-38-032	ID 0.153	OD 0.378	Thickness 0.032	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-380-125	ID 0.941	OD 1.467	Thickness 0.125	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-381-034	ID 1.0	OD 2.0	Thickness 0.034	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-382-005	ID 1.009	OD 1.372	Thickness 0.005	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-383-059	ID 1.014	OD 2.001	Thickness 0.059	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-384-010	ID 1.016	OD 1.375	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-385-031	ID 1.016	OD 1.75	Thickness 0.031	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-386-034	ID 1.034	OD 1.75	Thickness 0.034	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-387-015	ID 1.05	OD 1.35	Thickness 0.015	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-388-033	ID 1.095	OD 1.751	Thickness 0.033	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-389-065	ID 1.129	OD 2.501	Thickness 0.065	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-39-015	ID 0.155	OD 0.376	Thickness 0.015	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-390-015	ID 1.159	OD 1.373	Thickness 0.015	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-391-122	ID 1.187	OD 1.497	Thickness 0.122	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-392-059	ID 1.264	OD 1.813	Thickness 0.059	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-393-013	ID 1.27	OD 1.749	Thickness 0.013	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-394-060	ID 1.311	OD 2.001	Thickness 0.06	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-395-128	ID 1.509	OD 2.122	Thickness 0.128	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-396-064	ID 1.773	OD 2.203	Thickness 0.064	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-397-015	ID 1.78	OD 2.249	Thickness 0.015	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-398-032	ID 2.25	OD 3.0	Thickness 0.032	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-399-020	ID 0.346	OD 0.484	Thickness 0.02	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-40-016	ID 0.156	OD 0.375	Thickness 0.016	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-400-062	ID 0.256	OD 0.903	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-4010036	ID 0.79	OD 1.173	Thickness 0.036	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-402-060	ID 0.415	OD 0.865	Thickness 0.06	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-403-120	ID 0.533	OD 0.885	Thickness 0.12	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-404-078	ID 0.876	OD 1.296	Thickness 0.078	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-405-062	ID 0.25	OD 0.623	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-406-078	ID 0.435	OD 0.78	Thickness 0.077	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-407-060	ID 0.377	OD 0.873	Thickness 0.06	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-408-093	ID 0.744	OD 1.318	Thickness 0.093	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-409-010	ID 1.399	OD 1.691	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-41-023	ID 0.159	OD 0.247	Thickness 0.023	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-410-070	ID 0.224	OD 0.778	Thickness 0.07	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-411-031	ID 0.752	OD 1.625	Thickness 0.031	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-412-020	ID 0.418	OD 0.654	Thickness 0.02	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-413-120	ID 0.492	OD 0.89	Thickness 0.12	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-414-100	ID 0.671	OD 1.32	Thickness 0.1	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-415-012	ID 0.404	OD 0.622	Thickness 0.012	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity

High Carbon Steel Flat Washer Frequently Asked Questions

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

What are high carbon steel flat washers?
High carbon steel flat washers are manufactured from high carbon steel (typically 1050 through 1095 grade), which has significantly higher hardness and tensile strength than low carbon steel. High carbon steel washers are used in applications requiring maximum hardness, wear resistance, or spring-like resilience, such as under high-tension fasteners, in locking mechanisms, and as hardened bearing surfaces.

When should I use high carbon steel washers instead of low carbon steel?
High carbon steel washers are specified when the application requires a hardened bearing surface under a high-strength fastener, when the washer must resist deformation under high clamp loads, or when wear resistance is a priority. Low carbon steel washers are used for general-purpose load distribution where hardness is not critical.

Do high carbon steel washers require a finish or coating?
High carbon steel is susceptible to corrosion and typically requires a protective finish for most applications. Common finishes include zinc plating, phosphate, black oxide, and oil. For corrosive environments, stainless steel is generally a better choice than coated high carbon steel. Contact us to specify a finish if required.

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

Are your high carbon steel flat washers made in the USA?
Yes. All high 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.

High carbon steel is our top choice for hardness and wear resistance. Browse the full flat washers catalog for other material options depending on your application.