ENGINEERED SOURCING FOR INDUSTRIAL REQUIREMENTS ◆ PIPE FITTINGS • FLANGES • GASKETS • FASTENERS ◆ CS • LTCS • ALLOY STEEL • STAINLESS STEEL ◆ TECHNICAL INSPECTION & DOCUMENTATION SUPPORT ◆ DOMESTIC & EXPORT SUPPLY ◆
Home / Industrial Fasteners / Washers
ON THIS PAGE
INDUSTRIAL FASTENER

Washers

Industrial washers for piping and mechanical assemblies

Industrial washers for use with bolts, studs, nuts and mechanical assemblies. Available in carbon steel, hardened steel and stainless steel configurations, with dimensions, material grades and finishes selected according to the applicable specification.

Product Type Washers
Types Flat · Hardened
Materials CS · Hardened · SS
Application Bolted Assemblies
Request a Quote →
PRODUCT OVERVIEW

Washers for secure and reliable bolted assemblies

Washers are flat or specially formed components installed beneath bolt heads, nuts or other fastening elements. They help distribute the applied load over a larger bearing area and can help protect the mating surface from localized damage.

Industrial washers are commonly used with hex bolts, stud bolts and nuts in piping supports, equipment, fabrication, machinery and general mechanical assemblies.

The washer material and dimensions should be compatible with the fastener assembly and the requirements of the application. Hardened washers may be specified where higher mechanical performance is required.

Rhevon can source washers according to required diameter, thickness, material, dimensional standard, finish and quantity.

PRODUCT TYPE Industrial Washers

Flat and hardened washers for piping, equipment, fabrication and mechanical fastening applications.

CONFIGURATIONS

Washer configurations

Washers can be supplied in different types, materials, thicknesses, dimensions and surface finishes according to the application and purchase specification.

01

Flat Washers

General-purpose flat washers for distributing the load of nuts and bolt heads across the bearing surface.

Type Flat Washer
Materials CS · SS
Application General Assemblies
02

Hardened Washers

Hardened washers for applications requiring greater resistance to deformation beneath high-strength fasteners.

Type Hardened Washer
Material Hardened Steel
Application High-Strength Assemblies
03

Stainless Steel Washers

Stainless steel washers for applications requiring improved corrosion resistance and compatibility with stainless steel fasteners.

Material SS304 / SS316
Type Flat Washer
Application Corrosive Environments
04

Project-Specified Washers

Washers can be sourced to customer drawings, dimensional standards or project-specific specifications.

Dimensions Project Specific
Material Specification Based
Supply Individual / Bulk
MATERIALS & GRADES

Washer materials

Material selection depends on the fastener assembly, mechanical requirements, environmental conditions and applicable project specification.

Washer Type Material Typical Standard Typical Application
Flat Washer Carbon Steel ASME / ASTM / DIN General Industrial Assemblies
Hardened Washer Hardened Steel ASTM F436 High-Strength Bolting
Flat Washer Stainless Steel 304 Applicable ASTM / ASME Corrosion-Resistant Applications
Flat Washer Stainless Steel 316 Applicable ASTM / ASME More Corrosive Environments
DIMENSIONAL DATA

Hardened round washer dimensions

Standard-thickness ASTM F436/F436M inch-series washer reference dimensions.

Hardened round washer dimensional drawing with inside and outside diameter references
TECHNICAL DRAWING Hardened round washer reference geometry Drawing symbols correspond with the dimensional table below. Reference geometry is not to scale.
REV 03 DIMENSIONAL REFERENCE ASTM F436/F436M - Catalog page 21. Company-source dimensions are shown to 0.01 mm unless noted.

Hardened round washer dimensions

D = outside diameter; d = inside diameter; t = thickness

Swipe horizontally to view every column.

Bolt size(mm)D(mm)d(mm)tmin(mm)tmax(mm)
12.7026.9913.492.464.50
15.8833.3417.463.104.50
19.0537.3120.643.104.50
22.2344.4523.813.454.50
25.4050.8026.993.454.50
28.5857.1530.163.454.50
31.7563.5034.933.454.50
34.9369.8538.103.454.50
38.1076.2041.283.454.50
Catalog notes

Specify ASTM F436 Type 1 for the carbon-steel hardened reference product; identify coating and any special hardness or material requirement.

Include the actual washer stack when selecting stud or bolt length.

TECHNICAL PARAMETERS

Washer specifications

Product Type Washer
Types Flat · Hardened
Materials Carbon · Hardened Steel · SS
Sizes Metric / Imperial
Dimensions Application Specific
Finish Plain · Zinc · Coated
Configuration Flat / Hardened
Supply Individual / Bulk
APPLICATIONS

Typical industrial applications

Piping Supports
Industrial Equipment
Mechanical Assemblies
Machinery
Fabrication
Plant Maintenance
Structural Assemblies
General Engineering
QUALITY & DOCUMENTATION

Washers supplied to your specification

Washers can be inspected and documented according to the applicable dimensional, material and project requirements.

01 Material verification
02 Inside diameter inspection
03 Outside diameter inspection
04 Thickness verification
05 Dimensional tolerance verification
06 Surface finish verification
07 Marking / traceability where specified
08 Material / inspection documentation where required
FOR PROCUREMENT TEAMS

Information required for quotation

Providing the following information helps us identify the correct washer for your fastener assembly.

01 · Washer Type Flat / Hardened / Project Specific
02 · Nominal Size Metric / Imperial
03 · Material Carbon / Hardened / Stainless
04 · Standard Applicable Standard
05 · Dimensions ID / OD / Thickness
06 · Finish Plain / Zinc / Coated
07 · Application Fastener / Assembly Requirement
08 · Quantity Required Quantity
FREQUENTLY ASKED QUESTIONS

Washer FAQ

Common procurement questions about washer types, materials, dimensions and applications.

A washer generally provides a larger bearing surface beneath a nut or bolt head, helping distribute the applied load and reduce localized surface damage. The appropriate washer type depends on the fastener and application.

A flat washer is primarily used to distribute the load over a larger bearing area. A hardened washer provides greater resistance to deformation and is typically selected for applications involving high-strength fasteners or higher bearing loads.

Yes. Stainless steel washers can be sourced in grades such as SS304 and SS316 for applications requiring improved corrosion resistance and compatibility with stainless steel fasteners.

A typical washer enquiry should include the nominal fastener size, washer type, material, applicable dimensional standard, inside diameter, outside diameter, thickness, finish and quantity.

Yes. Washers can be supplied together with bolts, nuts and other fasteners. They can also be included in a mixed RFQ containing pipe fittings, flanges, gaskets and other piping components.

HAVE A WASHER REQUIREMENT?

Need industrial washers?

Share the washer type, size, material, dimensions, applicable standard, finish and quantity. You can also submit your complete piping component requirement through a single RFQ.

Request a Quote →
Rhevon Engineering

We are an India-based supplier of premium industrial pipe fittings, flanges, gaskets, fasteners and engineered piping components.

Quick Links

About Us Request for Quotation Downloads Contact Us

Contact

Kolbad, Thane (W), Maharashtra, India 400601

+91 77382 71050

sales@rhevonengineering.com

export@rhevonengineering.com

Find Us

© 2026 Rhevon Engineering , All Right Reserved.
Designed By HTML Codex
Distributed By: ThemeWagon