Wheel Bolt Anti-Loosening Systems

Wheel Bolt Anti-Loosening Systems

High-Safety Fastening Design for Automotive and Heavy-Duty Wheels

1. Engineering Background

Wheel fastening systems operate under:

• High torque preload

• Road vibration and shock loads

• Temperature cycling from braking systems

• Long-term fatigue stress

Failure modes include:

• Thread loosening

• Bolt elongation

• Seat deformation

2. Engineering Solution

We provide wheel bolt anti-loosening fastening systems, including:

• High-strength wheel bolts (Grade 10.9 / 12.9)

• Locking lug nuts (nylon insert / all-metal type)

• Wedge-lock washers

• Conical seat precision bolts

3. Anti-Loosening Technology

3.1 Wedge-Lock Mechanism

Mechanical locking under vibration without adhesives.

3.2 Torque Retention Design

Maintains preload stability under cyclic loads.

3.3 Friction Surface Engineering

• Zinc-nickel coating

• Dacromet surface treatment

• Anti-galling lubrication layers

 4. Installation Control

• Torque wrench mandatory (no impact final tightening)

• Cross-pattern tightening sequence

• Re-torque inspection after initial mileage

 5. Applications

• Passenger vehicles

• NEV wheel assemblies

• Commercial trucks

• High-performance automotive systems

 6. Engineering Value

• Improved driving safety

• Reduced wheel maintenance risk

• Stable preload retention under vibration

Packaging Standard

At Juxin Fasteners, we apply standardized export packaging to ensure product protection, traceability, and compliance with international logistics requirements.

1. Standard Export Packaging

Unless otherwise specified, all products will be packed according to our factory standard export packaging, which includes:

Moisture-resistant inner protection

Poly bag or small box packing as required

Reinforced export cartons

Clear labeling with part number, specification, batch number, and quantity

Palletizing for sea or air shipment when necessary

Our standard packaging is designed to ensure safe transportation, efficient warehousing, and long-distance international shipping.

2. Customized Packaging Options

We also provide customized packaging solutions according to customer requirements, including but not limited to:

Private labeling

Customized barcodes

Specific carton dimensions

Retail packaging

Special pallet configuration

Customer-specific marking and identification

So that you know, customized packaging may involve additional costs and extended lead time depending on the complexity of the requirements.

3. Compliance & Quality Assurance

All packaging processes are controlled under our ISO 9001 quality management system to ensure consistency, traceability, and product integrity throughout the supply chain.