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 1–50 of 479 products

SKU	ID	OD	Thickness	Material	ID TOL	OD TOL	Quantity
460-10-015	ID 0.0	OD 0.186	Thickness 0.015	Material High Carbon Steel	ID TOL Not available	OD TOL +-.005	Quantity
460-100-010	ID 0.253	OD 0.372	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-101-063	ID 0.253	OD 0.49	Thickness 0.063	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-102-010	ID 0.253	OD 0.497	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-103-062	ID 0.253	OD 0.5	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-104-033	ID 0.253	OD 0.532	Thickness 0.033	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-105-006	ID 0.253	OD 0.56	Thickness 0.006	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-106-008	ID 0.253	OD 0.627	Thickness 0.008	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-107-061	ID 0.253	OD 0.633	Thickness 0.061	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-108-029	ID 0.254	OD 0.364	Thickness 0.029	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-109-020	ID 0.254	OD 0.373	Thickness 0.02	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-109-032	ID 0.254	OD 0.373	Thickness 0.032	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-11-005	ID 0.0	OD 0.601	Thickness 0.005	Material High Carbon Steel	ID TOL Not available	OD TOL +-.005	Quantity
460-110-062	ID 0.254	OD 0.406	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-111-062	ID 0.254	OD 0.491	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-112-030	ID 0.254	OD 0.497	Thickness 0.03	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-113-062	ID 0.254	OD 0.531	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-114-062	ID 0.254	OD 0.687	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-115-064	ID 0.254	OD 0.75	Thickness 0.064	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-116-059	ID 0.254	OD 1.0	Thickness 0.059	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-117-061	ID 0.255	OD 0.62	Thickness 0.061	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-118-010	ID 0.256	OD 0.407	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-119-016	ID 0.256	OD 0.457	Thickness 0.016	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-12-033	ID 0.0	OD 1.093	Thickness 0.033	Material High Carbon Steel	ID TOL Not available	OD TOL +-.005	Quantity
460-120-032	ID 0.256	OD 0.5	Thickness 0.032	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-121-010	ID 0.257	OD 0.469	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-122-010	ID 0.258	OD 1.0	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-123-061	ID 0.259	OD 0.625	Thickness 0.061	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-124-010	ID 0.26	OD 0.391	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-125-050	ID 0.26	OD 0.561	Thickness 0.05	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-126-011	ID 0.26	OD 1.101	Thickness 0.011	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-127-010	ID 0.262	OD 0.501	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-128-009	ID 0.262	OD 0.56	Thickness 0.009	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-129-033	ID 0.263	OD 0.502	Thickness 0.033	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-13-063	ID 0.0	OD 1.095	Thickness 0.063	Material High Carbon Steel	ID TOL Not available	OD TOL +-.005	Quantity
460-130-010	ID 0.263	OD 0.747	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-131-031	ID 0.264	OD 0.412	Thickness 0.031	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-132-050	ID 0.264	OD 0.563	Thickness 0.05	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-133-127	ID 0.264	OD 0.625	Thickness 0.127	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-134-010	ID 0.266	OD 0.561	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-135-062	ID 0.267	OD 0.5	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-136-010	ID 0.267	OD 0.56	Thickness 0.01	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-137-062	ID 0.267	OD 0.734	Thickness 0.062	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-138-061	ID 0.268	OD 0.499	Thickness 0.061	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-139-060	ID 0.268	OD 0.657	Thickness 0.06	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-14-032	ID 0.077	OD 0.25	Thickness 0.032	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-140-050	ID 0.268	OD 0.876	Thickness 0.05	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-141-081	ID 0.271	OD 0.612	Thickness 0.081	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-142-050	ID 0.281	OD 0.407	Thickness 0.05	Material High Carbon Steel	ID TOL +-.005	OD TOL +-.005	Quantity
460-143-033	ID 0.284	OD 0.493	Thickness 0.033	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.