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DIN 440 Round Washers for Timber Connections – Manufacturer, Exporter & Supplier

We manufacture and export DIN 440 Round Washers for Timber Connections conforming to exact DIN 440 dimensional and mechanical specifications. Available in 100 HV / A2, our DIN 440 round 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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DIN 440 Key Specifications

The core specification data for DIN 440 Round Washers for Timber Connections, at a glance.

Standard

DIN 440

Type

Round Washers for Timber Connections

Size Range

M6 to M24

Thread Pitch

—

Property Class / Grade

100 HV / A2

Head / Drive Type

Large Round

About DIN 440 Round Washers for Timber Connections

DIN 440 Round Washers for Timber Connections are round washers produced and tested to the exact requirements of the DIN 440 specification. Featuring a Large Round configuration with — thread form, they are available in property classes 100 HV / A2 across a size range of M6 to M24. The DIN 440 standard governs dimensional tolerances, mechanical properties including tensile strength, proof load and hardness, as well as surface finish requirements to ensure dependable performance in Timber Structures and Wood Construction applications worldwide.
Our DIN 440 Round Washers for Timber Connections 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 Agriculture, General Building and General Engineering applications. As a global exporter of DIN 440 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

DIN

Corrosion Resistance

Salt-spray tested to relevant grade

Recommended Torque

Per property class / grade

Storage Conditions

Dry, corrosion-inhibited packing

DIN 440 Dimensions & Size Chart

Precise dimensional data for every DIN 440 Round Washers for Timber Connections size, cross-referenced against the standard’s key measurement points.
Nom. Sized1 min (mm)d2 max (mm)h (mm)
M66.4222.5
M88.4272.5
M1010.5343.0
M1213.0393.0
M1617.0504.0
M2021.0604.0
M2425.0725.0
Key Dimension Callouts

d

Nominal bolt diameter matched to washer hole size.

d1

Washer bore diameter providing clearance for the fastener shank.

d2

Outside washer diameter distributing load over timber surface.

s

Washer thickness measured between flat bearing faces.

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DIN 440 Round Washers for Timber Connections – Material Grades & Property Classes

DIN 440 Round Washers for Timber Connections are available across multiple property classes and surface finish options to match load-bearing and corrosion-resistance requirements for Timber Structures, Wood Construction and Agriculture 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 DIN 440 Round Washers for Timber Connections?

Nine reasons buyers worldwide rely on us as their DIN 440 Round Washers for Timber Connections manufacturer and export partner.
ISO Certified Production

Every batch of DIN 440 Round Washers for Timber Connections 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 DIN 440 Round Washers for Timber Connections shipment.

48-hr Dispatch on Stock Items

Commonly stocked DIN 440 Round Washers for Timber Connections 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 DIN 440 Round Washers for Timber Connections to buyers in over 50 countries worldwide.

Custom Sizes & Lengths

Non-standard DIN 440 Round Washers for Timber Connections lengths, diameters and special thread pitches are produced to order to match your drawing requirements.

Competitive Factory Pricing

Direct-from-factory pricing on DIN 440 Round Washers for Timber Connections with no middleman markup, offering the best value on volume and repeat orders.

In-House Metallurgical Testing

Hardness, tensile strength and dimensional checks for DIN 440 Round Washers for Timber Connections are performed in our in-house laboratory before every release.

Consolidated Multi-Standard Shipping

Combine DIN 440 Round Washers for Timber Connections 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 DIN 440 Round Washers for Timber Connections export order.

DIN 440 Round Washers for Timber Connections – Applications & End Uses

DIN 440 Round Washers for Timber Connections are widely specified across multiple industries. Select an industry below to see how our DIN 440 round washers are applied.
DIN 440 Round Washers for Timber Connections are used in timber structures for critical fastening applications where dimensional accuracy and mechanical performance are essential. Grade 100 HV is most commonly specified for timber structures environments.
In wood construction, DIN 440 Round Washers for Timber Connections are valued for consistent dimensions and reliable load-bearing capability. We supply with full test documentation to support quality audits and project inspections.
DIN 440 Round Washers for Timber Connections are used in agriculture assemblies where precise torque control and consistent fit are critical. We supply to OEM manufacturers and contractors with custom packaging formats.
For general building applications, DIN 440 Round Washers for Timber Connections are supplied with material test reports, dimensional inspection certificates and PPAP documentation where required.
DIN 440 Round Washers for Timber Connections 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, DIN 440 Round Washers for Timber Connections are fastened into assemblies requiring long-term reliability. Our export-packaged DIN 440 round washers arrive protected from transit corrosion with full documentation.

Request a Quote for DIN 440 Round Washers for Timber Connections

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 DIN 440

Common questions from buyers sourcing DIN 440 Round Washers for Timber Connections, covering sizes, grades, documentation and lead times.
We supply DIN 440 Round Washers for Timber Connections from M6 to M24 in — thread. Standard lengths are stocked; non-standard lengths are produced to order. Contact us with your exact requirements for availability confirmation.
DIN 440 Round Washers for Timber Connections 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 DIN 440 Round Washers for Timber Connections 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 DIN 440 Round Washers for Timber Connections 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