DIN7349 Carbon Steel Heavy Duty Flat Washer

DIN7349 Carbon Steel Heavy Duty Flat Washer

DIN7349 carbon steel heavy duty flat washer is a robust fastening accessory designed for high-load bolted connections, spacer applications, and mechanical assemblies requiring enhanced support performance. The DIN7349 carbon steel heavy duty flat washer features a thick structure and larger bearing surface, providing improved load distribution and reducing stress concentration between fasteners and connected components.

Manufactured from high-quality carbon steel, the DIN7349 carbon steel heavy duty flat washer offers excellent mechanical strength, wear resistance, and stable performance in industrial environments. It is widely used in machinery, construction equipment, agricultural machinery, and heavy-duty fastening systems.

heavy duty flat washer


Product Overview

The DIN7349 carbon steel heavy duty flat washer is engineered for applications where standard washers cannot provide sufficient load support. Its increased thickness and reinforced structure help distribute clamping forces evenly, improving connection reliability.

Compared with conventional flat washers, the DIN7349 carbon steel heavy duty flat washer provides greater resistance to deformation under high tightening loads. It is commonly installed with bolts, studs, and threaded fasteners in demanding mechanical assemblies.

As a reliable industrial fastener accessory, it is widely selected by OEM manufacturers, equipment builders, machinery suppliers, and engineering contractors requiring durable fastening solutions.


Product Specifications

ItemDescription
StandardDIN7349
Product NameDIN7349 Carbon Steel Heavy Duty Flat Washer
MaterialCarbon Steel
Washer TypeHeavy Duty Flat Washer
ShapeRound Thick Washer
Size RangeM5–M30
Inner DiameterAccording to DIN7349 Standard
Outer DiameterAccording to DIN7349 Standard
ThicknessHeavy Duty Design
Surface FinishPlain / Black Oxide / Zinc Plated
Installation TypeBolt and Stud Assembly
PackagingBulk / Carton / OEM Packaging
CustomizationSize, material, finish available

Technical Parameters

ParameterValue
Material GradeCarbon Steel
Tensile StrengthAccording to material grade
Yield StrengthAccording to material grade
HardnessControlled according to requirement
DensityApprox. 7.85 g/cm³
Wear ResistanceGood
Corrosion ResistanceDepends on surface treatment
Load CapacityHigher than standard flat washers
Manufacturing StandardDIN7349

Materials and Manufacturing Process

The DIN7349 carbon steel heavy duty flat washer is manufactured through precision metal processing to achieve high strength, accurate dimensions, and reliable load performance.

  • Raw material selection: High-quality carbon steel sheet or plate
  • Stamping or machining: Formation of thick washer structure
  • Hole processing: Precision inner diameter forming
  • Edge finishing: Removal of burrs and sharp edges
  • Heat treatment: Applied when required to improve mechanical strength
  • Surface finishing: Black oxide, zinc plating, or customized coating
  • Inspection: Diameter, thickness, flatness, and surface quality testing
  • Packaging: Protective industrial packaging for transportation

Each DIN7349 carbon steel heavy duty flat washer is produced under strict quality control to ensure stable performance in high-load applications.


Applications of the Product

The DIN7349 carbon steel heavy duty flat washer is widely used across various industries:

  • Construction machinery: Heavy equipment fastening systems
  • Agricultural machinery: High-load mechanical connections
  • Automotive equipment: Structural fastening assemblies
  • Industrial machinery: Large mechanical joints
  • Machine tools: Fixture and support applications
  • Steel structures: Heavy-duty bolted connections
  • Engineering equipment: High-pressure fastening systems
  • Manufacturing systems: Durable assembly solutions

Its reinforced design makes it suitable for applications requiring increased bearing capacity and deformation resistance.


Why Choose This Product

  • DIN7349 standard compatibility
  • Heavy-duty structure for higher load support
  • Excellent carbon steel mechanical strength
  • Reduces surface pressure and deformation
  • Suitable for high-strength fastening systems
  • Multiple surface treatment options
  • Cost-effective industrial solution
  • Stable performance under heavy loads
  • OEM customization support

The DIN7349 carbon steel heavy duty flat washer provides reliable support for demanding fastening applications.


Why Choose Flybear

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

  • Advanced metal processing capability
  • Heavy-duty washer manufacturing experience
  • OEM/ODM customization support
  • Stable production capacity for bulk orders
  • Strict quality inspection procedures
  • Global export experience
  • Engineering support for customized applications

Flybear provides reliable fastening products for distributors, OEM manufacturers, machinery builders, 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 and outer diameter measurement
  • Thickness inspection
  • Flatness inspection
  • Surface treatment inspection
  • Dimensional tolerance verification
  • Packaging quality inspection

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


Selection Guide

When selecting a DIN7349 carbon steel heavy duty flat washer, consider:

  • Bolt size compatibility
  • Required load distribution capability
  • Tightening force requirements
  • Operating environment
  • Surface treatment requirements
  • Assembly conditions

Correct selection improves joint stability and extends fastening service life.


FAQ

1. What is DIN7349 heavy duty flat washer used for?
It is used to distribute high clamping loads and provide additional support in heavy-duty fastening systems.

2. What makes DIN7349 different from standard washers?
DIN7349 washers have a thicker structure and provide higher load-bearing capability.

3. What material is commonly used for DIN7349 washers?
Carbon steel is commonly selected for its strength and cost efficiency.

4. Can DIN7349 washers have surface treatments?
Yes, black oxide, zinc plating, and other coatings are available.

5. Can custom sizes be produced?
Yes, Flybear supports customized dimensions, materials, and finishes.


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.

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