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ISO 7091 Plain Washers – Normal Series (Grade C) – Manufacturer, Exporter & Supplier

We manufacture and export ISO 7091 Plain Washers – Normal Series (Grade C) conforming to exact ISO 7091 dimensional and mechanical specifications. Available in 100 HV / A2, our ISO 7091 flat washers pass rigorous in-house testing — hardness, tensile and dimensional — before dispatch. ISO 9001:2015 certified production, EN 10204 3.1 mill test reports supplied as standard, and dedicated export documentation for 50+ destination countries.
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ISO 7091 Key Specifications

The core specification data for ISO 7091 Plain Washers – Normal Series (Grade C), at a glance.

Standard

ISO 7091

Type

Plain Washers – Normal Series (Grade C)

Size Range

M5 to M64

Thread Pitch

—

Property Class / Grade

100 HV / A2

Head / Drive Type

Flat Round / Grade C

About ISO 7091 Plain Washers – Normal Series (Grade C)

ISO 7091 Plain Washers – Normal Series (Grade C) are flat washers produced and tested to the exact requirements of the ISO 7091 specification. Featuring a Flat Round / Grade C configuration with — thread form, they are available in property classes 100 HV / A2 across a size range of M5 to M64. The ISO 7091 standard governs dimensional tolerances, mechanical properties including tensile strength, proof load and hardness, as well as surface finish requirements to ensure dependable performance in General Construction and Light Engineering applications worldwide.
Our ISO 7091 Plain Washers – Normal Series (Grade C) are cold-forged from certified bar stock, heat-treated where required, and thread-rolled to guarantee consistent fit and fatigue performance. Every batch is documented with an EN 10204 3.1 Mill Test Report covering chemical composition, mechanical test results and dimensional inspection. Available in zinc electroplated, hot-dip galvanised, Geomet, Dacromet and black oxide finishes to match corrosion-resistance requirements for Agricultural Machinery, General Engineering and General Engineering applications. As a global exporter of ISO 7091 fasteners, we consolidate orders with other standard-specification items into single shipments, backed by complete customs documentation for over 50 countries.
Technical Specifications

Raw Material

100 HV Alloy / Stainless Steel

Country of Origin

India

Standard Body

ISO

Corrosion Resistance

Salt-spray tested to relevant grade

Recommended Torque

Per property class / grade

Storage Conditions

Dry, corrosion-inhibited packing

ISO 7091 Dimensions & Size Chart

Precise dimensional data for every ISO 7091 Plain Washers – Normal Series (Grade C) size, cross-referenced against the standard’s key measurement points.
Nom. Sized1 min (mm)d2 max (mm)h (mm)
M55.511.01.0
M66.613.01.6
M89.017.01.6
M1011.021.02.0
M1214.025.02.5
M1618.032.03.0
M2022.039.03.0
M2426.044.04.0
Key Dimension Callouts

d

Nominal screw size the washer is intended to fit.

d1

Inside hole diameter providing clearance around the fastener.

d2

Outside washer diameter defining bearing surface coverage.

h

Washer thickness measured between flat bearing faces.

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ISO 7091 Plain Washers – Normal Series (Grade C) – Material Grades & Property Classes

ISO 7091 Plain Washers – Normal Series (Grade C) are available across multiple property classes and surface finish options to match load-bearing and corrosion-resistance requirements for General Construction, Light Engineering and Agricultural Machinery applications.
Property Classes
100 HV A2
Surface Treatments
Zinc Electroplated Hot-Dip Galvanised (HDG) Geomet Coating Dacromet Coating Black Oxide Phosphate & Oil Plain (Self Colour) Nickel Plated

Why Choose Us for ISO 7091 Plain Washers – Normal Series (Grade C)?

Nine reasons buyers worldwide rely on us as their ISO 7091 Plain Washers – Normal Series (Grade C) manufacturer and export partner.
ISO Certified Production

Every batch of ISO 7091 Plain Washers – Normal Series (Grade C) is manufactured under an ISO 9001:2015 certified quality management system with full in-process control.

EN 10204 3.1 MTR Supplied

A mill test report covering chemical composition, tensile, hardness and dimensional inspection accompanies every ISO 7091 Plain Washers – Normal Series (Grade C) shipment.

48-hr Dispatch on Stock Items

Commonly stocked ISO 7091 Plain Washers – Normal Series (Grade C) sizes leave our warehouse within 48 hours of order confirmation, minimising your downtime.

Export to 50+ Countries

Established freight and customs partners ensure reliable delivery of ISO 7091 Plain Washers – Normal Series (Grade C) to buyers in over 50 countries worldwide.

Custom Sizes & Lengths

Non-standard ISO 7091 Plain Washers – Normal Series (Grade C) lengths, diameters and special thread pitches are produced to order to match your drawing requirements.

Competitive Factory Pricing

Direct-from-factory pricing on ISO 7091 Plain Washers – Normal Series (Grade C) with no middleman markup, offering the best value on volume and repeat orders.

In-House Metallurgical Testing

Hardness, tensile strength and dimensional checks for ISO 7091 Plain Washers – Normal Series (Grade C) are performed in our in-house laboratory before every release.

Consolidated Multi-Standard Shipping

Combine ISO 7091 Plain Washers – Normal Series (Grade C) with other standard-specification fasteners into a single container shipment to reduce freight costs.

Dedicated Export Documentation Team

Our specialist team prepares all customs, compliance and shipping paperwork for every ISO 7091 Plain Washers – Normal Series (Grade C) export order.

ISO 7091 Plain Washers – Normal Series (Grade C) – Applications & End Uses

ISO 7091 Plain Washers – Normal Series (Grade C) are widely specified across multiple industries. Select an industry below to see how our ISO 7091 flat washers are applied.
ISO 7091 Plain Washers – Normal Series (Grade C) are used in general construction for critical fastening applications where dimensional accuracy and mechanical performance are essential. Grade 100 HV is most commonly specified for general construction environments.
In light engineering, ISO 7091 Plain Washers – Normal Series (Grade C) are valued for consistent dimensions and reliable load-bearing capability. We supply with full test documentation to support quality audits and project inspections.
ISO 7091 Plain Washers – Normal Series (Grade C) are used in agricultural machinery assemblies where precise torque control and consistent fit are critical. We supply to OEM manufacturers and contractors with custom packaging formats.
For general engineering applications, ISO 7091 Plain Washers – Normal Series (Grade C) are supplied with material test reports, dimensional inspection certificates and PPAP documentation where required.
ISO 7091 Plain Washers – Normal Series (Grade C) for general engineering use are selected from stainless steel or coated grades to provide appropriate corrosion resistance while maintaining specified mechanical performance.
In general engineering applications, ISO 7091 Plain Washers – Normal Series (Grade C) are fastened into assemblies requiring long-term reliability. Our export-packaged ISO 7091 flat washers arrive protected from transit corrosion with full documentation.

Request a Quote for ISO 7091 Plain Washers – Normal Series (Grade C)

Get pricing and lead times for your required sizes and quantities. ISO 9001 certified. EN 10204 3.1 MTR supplied. Export to 50+ countries.
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Frequently Asked Questions About ISO 7091

Common questions from buyers sourcing ISO 7091 Plain Washers – Normal Series (Grade C), covering sizes, grades, documentation and lead times.
We supply ISO 7091 Plain Washers – Normal Series (Grade C) from M5 to M64 in — thread. Standard lengths are stocked; non-standard lengths are produced to order. Contact us with your exact requirements for availability confirmation.
ISO 7091 Plain Washers – Normal Series (Grade C) are supplied in 100 HV / A2. Carbon and alloy steel grades comply with ISO 898-1 and stainless steel grades comply with ISO 3506. ASTM grades are available for USA and Canadian export orders.
Every ISO 7091 Plain Washers – Normal Series (Grade C) order includes an EN 10204 3.1 Mill Test Report covering chemical composition, tensile strength, hardness and proof load. Third-party inspection by SGS, BV or TUV can be arranged on request.
Stocked ISO 7091 Plain Washers – Normal Series (Grade C) sizes dispatch within 48 hours of order confirmation. Custom lengths, special grades or surface finishes typically ship within 2-3 weeks. Contact us for a specific lead time on your required size and quantity.

Industrial Cities We Serve:

  • Ahmedabad
  • Aurangabad
  • Bengaluru
  • Chennai
  • Coimbatore
  • Faridabad
  • Gandhidham
  • Greater Noida
  • Gurugram
  • Hazira
  • Hosur
  • Hyderabad
  • Jamnagar
  • Jamshedpur
  • Ludhiana
  • Mumbai
  • Mundra
  • Mysuru
  • Nagpur
  • Nashik
  • Navi Mumbai
  • Noida
  • Pune
  • Rajkot
  • Sanand
  • Surat
  • Thane
  • Tiruppur
  • Vadodara
  • Visakhapatnam

Countries We Export To:

  • US
  • Canada
  • Mexico
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Netherlands
  • Belgium
  • Poland
  • Sweden
  • Norway
  • Denmark
  • Turkey
  • UAE
  • Saudi Arabia
  • Qatar
  • Oman
  • Kuwait
  • Bahrain
  • South Africa
  • Egypt
  • Nigeria
  • Australia
  • New Zealand
  • Singapore
  • Malaysia
  • Indonesia
  • Thailand
  • Vietnam
  • South Korea
  • Japan
  • Brazil