DOZ Functional Nut

ISO 9001:2015 and CE certified, the XYOON DOZ Functional Nut is an anti-loosening fastener engineered for high-vibration, high-pressure industrial environments. Its eccentric self-locking structure generates continuous radial locking force, maintaining stable pre-tightening under sustained impact and pressure fluctuations. Forged from high-strength carbon steel or stainless steel, it delivers reliable zero-loosening performance in construction machinery, wind power, marine, and mining equipment. Full customization available.

Technical Specifications

What is DOZ Functional Nut?

XYOON DOZ functional nut is a professional anti-loosening fastener independently developed for high-vibration, high-pressure and high-impact industrial connection scenarios. Different from conventional nuts, it relies on eccentric structure to generate continuous radial locking force, which can keep stable pre-tightening force under long-term vibration and pressure fluctuation, and realize zero-loosening and zero-leakage of pipeline connection. It is mainly used for locking hydraulic pipe joints, mechanical transmission parts and high-pressure equipment, and is a core component to improve the safety and stability of heavy industrial systems.

Application Scenarios & Practical Cases

XYOON DOZ functional nut is specially designed for heavy industrial scenarios with strict anti-loosening requirements. It has been widely used in construction machinery hydraulic systems, wind turbine tower connections, ship marine pipelines, metallurgical mining equipment and commercial vehicle transmission systems. We have provided stable supporting solutions for large-scale construction machinery projects in Vietnam and wind power projects in Thailand, and the products have been operating stably for a long time without any loosening failure.

Certification & Quality Assurance

All XYOON DOZ Functional Nuts are manufactured under strict quality controls and backed by internationally recognized certifications:

ISO 9001:2015 Quality Management System

CE Safety Certification (2006/42/EC)

SGS Material Testing Certification

Full-Link Quality Control Process:

Raw material incoming inspection → Precision forging → Heat treatment strengthening → Thread finishing → Surface treatment → 100% locking performance testing → 100% pressure testing → Finished product packaging.

Each batch includes a complete quality inspection report, with a factory pass rate consistently above 99.8%.

Core Reasons to Choose Us Over Peers

Technical advantage: Master eccentric self-locking core technology, better anti-loosening effect than ordinary friction locking nuts.

Quality assurance: Forging process instead of casting, longer service life and more stable performance.

Service support: Full customization + 24-hour technical support, suitable for global customers' working conditions.

Customization Process – Tailored to Your Working Conditions

We support OEM/ODM customization for DOZ Functional Nuts with a streamlined workflow:

Requirement submission – Provide pipe diameter, pressure rating, material preference, thread standard, and application environment (vibration level, temperature range).

Engineering design – 2D/3D drawings prepared with quotation within 24-48 hours.

Sample approval – Pre-production samples available for customer verification.

Production – Precision forging, heat treatment, thread finishing, and surface treatment.

Quality release – 100% locking performance and pressure testing before packaging.

Shipment – Secure packaging with batch traceability documentation.

After-Sales Support & Warranty

12-month warranty against manufacturing defects from date of shipment.

Technical support via email, phone, or video call for installation guidance and troubleshooting.

Batch traceability – each production batch is recorded with test data archived for quality root-cause analysis.

Rapid resupply – standard sizes stocked for immediate shipment; custom sizes lead time: 15-20 working days.

Sample service – available upon request for pre-order verification.

Responsive inquiry handling – all inquiries acknowledged within 24 working hours.

FAQ

Q1: What makes DOZ Functional Nut different from a standard lock nut?

A: A standard lock nut relies on friction or nylon inserts to resist loosening, which can degrade under vibration or temperature changes. The DOZ Functional Nut uses an eccentric self-locking structure that generates continuous radial locking force – the more vibration, the tighter it locks. This provides superior anti-loosening performance in high-impact applications.

Q2: Can the DOZ nut be reused after disassembly?

A: Yes. Unlike nylon-insert lock nuts that lose effectiveness after one use, the DOZ Functional Nut's eccentric locking mechanism maintains its performance through multiple installation and removal cycles, making it suitable for maintenance and system modifications.

Q3: What materials are available?

A: Standard material is high-strength carbon steel with surface treatment. Stainless steel (304/316L) is available for corrosive or marine environments. Please specify your application when inquiring.

Q4: How do I select the right DOZ nut for my system?

A: We need: ① pipe outer diameter, ② working pressure range, ③ material preference, and ④ application environment (vibration level, temperature). Our technical team will recommend the optimal solution within 24 hours.

Q5: What is the MOQ and lead time?

A: Standard sizes – MOQ 100 pcs, in-stock for immediate shipment. Custom sizes – MOQ 500 pcs, 15-20 working days after drawing confirmation. Sample orders are welcome.