Premium Industrial
D Ring Bolt Solutions

Precision-engineered carbon steel d ring bolts designed for maximum load-bearing capacity and extreme durability. As a leading manufacturer in China's fastener hub, Yuetong provides globally certified rigging and lifting solutions that meet DIN and ISO standards for industrial safety.

5000+
Annual Output (Tons)
120+
Countries Served
7 Days
Sample Lead Time
99.8%
On-Time Delivery

Engineering Excellence
& Industrial Strength

High-Performance Fastening Solutions for Heavy-Duty Applications

As a specialized leader in the metal products industry, our d ring bolt series represents the pinnacle of load-bearing reliability. By utilizing grade 8.8 carbon steel and advanced forging techniques, we ensure that every bolt can withstand extreme tension and shearing forces, making them indispensable for professional rigging and structural mounting in the most demanding environments.

Our technical advantage lies in the precision Zn-plating surface treatment which provides an impenetrable barrier against corrosion. From the meticulously threaded shafts to the perfectly balanced D-ring loops, our manufacturing process integrates modern CNC machining and strict quality control, ensuring a seamless fit and unmatched longevity for global infrastructure projects.

Core Manufacturing Pillars

The foundation of our quality assurance and product longevity.

01

Material Superiority

We source only high-grade carbon steel to ensure structural integrity under load.

  • Grade 8.8 Steel: Enhanced tensile strength for heavy lifting.
  • Uniform Composition: Elimination of internal micro-voids.
  • Thermal Stability: Optimized for varying temperature environments.
02

Surface Engineering

Advanced coatings to prevent oxidation and wear in harsh climates.

  • Zn-Plating: Superior corrosion resistance for marine use.
  • Bright Finish: High-visibility and smooth surface texture.
  • Wear Resistance: Extended lifespan under friction.
03

Precision Forging

Utilizing advanced machinery to maintain strict dimensional tolerances.

  • Metric Standard: Precise adherence to DIN 603/ISO.
  • Half-Thread Accuracy: Perfect tension control.
  • CNC Finishing: Micron-level precision on D-ring radii.

Analytical Performance
& Technical Data

Quantifiable benchmarks of our fastening product reliability.

Material Distribution Analysis

Product Performance Radar

Technical Parameters,
Metric Specifications

Detailed dimensions and material properties for D-ring bolt series.

Product Model
Diameter
Material
Grade
Finish
Standard
DRB-M6-STD
M6
Carbon Steel
4.8
Zn-Plated
DIN 603
DRB-M8-STD
M8
Carbon Steel
4.8
Zn-Plated
DIN 603
DRB-M10-HV
M10
Carbon Steel
8.8
Galvanized
DIN 603
DRB-M12-HV
M12
Carbon Steel
8.8
Galvanized
DIN 603
DRB-M14-HV
M14
Carbon Steel
8.8
Galvanized
DIN 603
DRB-M16-HV
M16
Carbon Steel
8.8
Galvanized
DIN 603
DRB-M18-HV
M18
Carbon Steel
8.8
Galvanized
DIN 603
DRB-M20-HV
M20
Carbon Steel
8.8
Galvanized
DIN 603

Real-World
Impact

Proven reliability in critical infrastructure and industrial rigging.

North Sea Oil Platform Rigging

Marine Heavy Lifting

Supplied M20 high-tensile d ring bolts for structural equipment anchoring in salt-spray environments.

Corrosion Rate: -40% Load Stability: 100%

Global Logistics Warehouse

Structural Mounting

Implementation of M12 d ring bolts for heavy-duty overhead conveyor support systems across 50,000 sqft.

Installation Speed: +25% Cost Reduction: 15%

European Automotive Plant

Assembly Line Fixtures

Custom-sized D ring bolts for precise jig positioning, ensuring microns of tolerance in chassis welding.

Precision Rate: 99.9% Life Cycle: +30%

Mining Equipment OEM

Extreme Load Support

Provided grade 8.8 d ring bolts for heavy machinery transport frames used in underground mining.

Load Capacity: +20% Fail Rate: 0%

Shipyard Anchor Systems

Maritime Fastening

Deployment of large-scale galvanized D ring bolts for docking support structures in high-salinity ports.

Durability: 10+ Yrs Compliance: ISO 898-1

Agricultural Machinery

Farm Equipment Rigging

Integrated M8/M10 d ring bolts for detachable harvester attachment points across thousands of units.

Unit Cost: -12% Fit Accuracy: High

Industry
Applications

Tailored solutions for demanding environments.

Construction & Infrastructure

Used in structural steel bracing, formwork anchoring, and heavy machinery rigging for skyscrapers and bridges.

Maritime & Shipping

Essential for deck equipment, cargo securing, and shipyard mooring systems requiring high salt-corrosion resistance.

Mining & Quarrying

High-load D ring bolts used for transporting heavy excavation equipment and supporting underground ventilation structures.

Automotive Manufacturing

Precision fixtures and jigging systems for assembly lines, ensuring repeatable accuracy in high-volume production.

Logistics & Warehousing

Overhead hoist mounting, pallet racking anchors, and securement points for heavy-duty storage solutions.

Agricultural Equipment

Attachment points for machinery, trailer securement, and rigging for large-scale farm implement transport.

Quality Assurance
& Export Standards

Raw Material Certification

Every batch of carbon steel undergoes spectrographic analysis to verify chemical composition, ensuring no impurities compromise the bolt's structural integrity.

Tension & Load Testing

Our bolts are subjected to destructive stress tests to confirm that the break-load far exceeds the rated working load limit (WLL).

Surface Coating Validation

We use salt spray testing for all galvanized finishes, guaranteeing that our d ring bolts withstand years of exposure to corrosive atmospheres.

Trust Verified

YUETONG Fasteners is a globally recognized manufacturer adhering to the most stringent international engineering codes.

✓ ISO 9001:2015 Certified ✓ DIN Standard Compliance ✓ SGS Verified Factory

Frequently Asked
Questions

Expert answers to common technical and commercial inquiries.

01

What is the difference between Grade 4.8 and 8.8 d ring bolts?

Grade 4.8 is suitable for light-to-medium duty applications, whereas Grade 8.8 is high-tensile carbon steel designed for heavy industrial lifting and structural loads where maximum safety is required.

02

How does the Zn-plating protect the bolt in marine environments?

The zinc coating acts as a sacrificial anode, meaning the zinc corrodes instead of the underlying steel. This prevents rust from compromising the structural integrity of your d ring bolt.

03

Can you provide OEM customizations for D ring sizes?

Yes, as a direct manufacturing factory, we provide full OEM services. We can customize the diameter, thread length, and loop size to meet your specific engineering drawings.

04

What is your typical minimum order quantity (MOQ)?

Our standard MOQ is 1 Ton. However, we are open to discussing smaller quantities for sample orders or initial project trials to ensure product compatibility.

05

Which shipping ports do you typically use for export?

Our primary export gateway is Tianjin Port, allowing for efficient logistics and competitive shipping rates to Southeast Asia, Europe, and the Americas.

06

Do you provide certification for load-bearing capacity?

Yes, we provide comprehensive Mill Test Certificates (MTC) and quality reports upon request, ensuring every batch meets the rated strength specifications.

Secure Your Infrastructure with Yuetong Fasteners

Partner with the leading expert in high-tensile d ring bolts and precision fasteners for your next industrial project.

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