DIN436 Square Washer

DIN436 Square Washer

DIN436 square washer is a heavy-duty fastening component designed to provide increased load distribution and improved support in structural and mechanical assemblies. The DIN436 square washer features a square outer shape with a large bearing surface, helping spread clamping force over a wider area and reducing stress on connected materials.

Manufactured from carbon steel, stainless steel, or customized materials, the DIN436 square washer offers excellent mechanical strength, dimensional stability, and reliable performance in demanding applications. It is widely used in timber construction, steel structures, machinery frames, electrical installations, and industrial fastening systems.

square washer


Product Overview

The DIN436 square washer is engineered for applications where standard round washers cannot provide sufficient support. Its square shape offers a larger contact area and better resistance against rotation when installed on structural components.

Compared with conventional flat washers, the DIN436 square washer provides improved load distribution and helps prevent surface deformation, especially when used with wood, steel plates, or large structural components.

This washer is commonly installed with bolts and screws in heavy-duty fastening systems and is widely selected by OEM manufacturers, construction companies, machinery builders, and engineering contractors.


Product Specifications

ItemDescription
StandardDIN436
Product NameSquare Washer
MaterialCarbon Steel / Stainless Steel
Washer TypeSquare Flat Washer
ShapeSquare Outer Profile with Round Hole
Material OptionsSteel / Stainless Steel Customized
Size RangeM5–M30
Inner DiameterAccording to DIN436 Standard
Outer ShapeSquare Design
ThicknessAccording to DIN436 Standard
Surface FinishPlain / Zinc Plated / Hot Dip Galvanized
Installation TypeBolt and Nut Assembly
PackagingBulk / Carton / OEM Packaging
CustomizationSize, material, coating available

Technical Parameters

ParameterValue
Material GradeCarbon Steel / Stainless Steel
Tensile StrengthAccording to material grade
Yield StrengthAccording to material grade
HardnessControlled according to requirement
DensityApprox. 7.85–7.98 g/cm³
Load DistributionExcellent due to square bearing surface
Corrosion ResistanceDepends on material and coating
Manufacturing StandardDIN436

Materials and Manufacturing Process

The DIN436 square washer is manufactured through precision stamping and finishing processes to ensure accurate dimensions, smooth edges, and reliable fastening performance.

  • Raw material selection: High-quality steel plate, stainless steel sheet, or customized materials
  • Cutting process: Precision blanking according to washer dimensions
  • Punching process: Formation of accurate bolt holes
  • Edge finishing: Removal of burrs and sharp edges
  • Heat treatment: Applied when required to improve mechanical properties
  • Surface treatment: Zinc plating, hot dip galvanizing, or customized coating
  • Inspection: Dimensional accuracy, thickness, and surface quality testing
  • Packaging: Protective industrial packaging for transportation

Each DIN436 square washer is produced under strict quality control to ensure stable performance in industrial applications.


Applications of the Product

The DIN436 square washer is widely used in industries requiring strong load support:

  • Timber construction: Wood beam and structural fastening
  • Steel structures: Heavy-duty connection systems
  • Machinery manufacturing: Equipment frame assemblies
  • Construction equipment: Structural component fastening
  • Electrical engineering: Mounting and support applications
  • Railway systems: Infrastructure fastening
  • Industrial plants: Steel support structures
  • OEM manufacturing: Customized mechanical assemblies

Its large square bearing surface makes it suitable for applications involving high loads or softer materials.


Why Choose This Product

  • DIN436 standard compatibility
  • Large bearing area improves load distribution
  • Reduces surface damage during fastening
  • Suitable for heavy-duty applications
  • Available in carbon steel and stainless steel
  • Multiple surface treatments available
  • Reliable dimensional accuracy
  • Long service life
  • OEM customization support

The DIN436 square washer provides a dependable fastening solution for structural and industrial applications.


Why Choose Flybear

Flybear is a professional manufacturer specializing in industrial fasteners and customized fastening solutions.

  • Advanced stamping and washer manufacturing capability
  • Experience with structural fastening components
  • Support for customized materials and dimensions
  • OEM/ODM production capability
  • Stable manufacturing capacity for bulk supply
  • Strict quality inspection procedures
  • Global export experience
  • Engineering support for customized requirements

Flybear provides reliable fastening products for construction, machinery, engineering, and industrial customers worldwide.


Quality Inspection and Control

Quality assurance is maintained throughout the manufacturing process:

  • Raw material chemical composition analysis
  • Material certificate verification
  • Inner hole dimension inspection
  • Outer dimension inspection
  • Thickness measurement
  • Flatness inspection
  • Surface finish inspection
  • Packaging quality inspection

All manufacturing processes follow ISO-based quality management systems to ensure consistent product reliability.


Selection Guide

When selecting a DIN436 square washer, consider:

  • Bolt diameter compatibility
  • Required bearing surface area
  • Load requirements
  • Connected material type
  • Environmental corrosion conditions
  • Required surface treatment

Correct selection improves fastening stability and helps extend assembly service life.


FAQ

1. What is DIN436 square washer used for?
It is used to distribute fastening loads over a larger area in structural and heavy-duty connections.

2. What is the advantage of a square washer compared with a round washer?
A square washer provides a larger contact area and improved support on structural surfaces.

3. What materials are available for DIN436 washers?
Common materials include carbon steel, stainless steel, and customized materials.

4. Can DIN436 square washers be customized?
Yes, Flybear supports customized sizes, materials, surface treatments, and packaging.

5. Where are DIN436 washers commonly used?
They are widely used in timber construction, steel structures, machinery, and industrial equipment.


We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.

Contact us for quotation, customization, and technical support via Contact Us.

facebook (2)instagram 2 youtube (1)linkedin (1)

Scroll to Top