YD39-004~007 Pintle Hook Mounts: 5-30 Ton Capacity, Black Powder Coated
Heavy-duty pintle hook mounts designed for cargo, engineering, and special transport applications. Engineered for ultra-high traction transmission and stable connection between heavy-duty vehicles and trailers.
Product Specifications
Core Parameter Summary
| Parameter |
YD39-004 |
YD39-005 |
YD39-006 |
YD39-007 |
| Model No. |
YD39-004 |
YD39-005 |
YD39-006 |
YD39-007 |
| Mounting Hole Dimensions |
Horizontal: 3-3/8" (85.7mm)
Vertical: 1-3/4" (44.5mm)
|
Same as 004 |
Same as 004 |
Same as 004 (reinforced hole wall) |
| Hole Diameter |
17/32" (13.5mm) |
Same as 004 |
Same as 004 |
17/32" (reinforced hole wall) |
| Maximum Capacity |
5 Ton (11,023 LBS) |
10 Ton (22,046 LBS) |
15 Ton (33,069 LBS) |
30 Ton (66,139 LBS) |
| Net Weight |
13.67 LBS (6.2kg) |
Same as 004 |
Same as 004 |
Same as 004 (higher density) |
| Finish |
Black powder coat (30-35μm) |
Same as 004 |
Same as 004 |
Same as 004 (reinforced) |
| Material |
Ultra-high-strength alloy steel (600MPa) |
Same as 004 |
Same as 004 |
Military-grade alloy (700MPa) |
Model Load-Bearing and Application Guide
| Model |
Capacity |
Compatible Trailers |
Recommended Bolts |
| YD39-004 |
5 Ton |
10-ton cargo trailers, agricultural trailers |
Grade 8.8 M12 |
| YD39-005 |
10 Ton |
15-ton engineering trailers |
Grade 10.9 M12 |
| YD39-006 |
15 Ton |
20-ton cargo trailers |
Grade 12.9 M12 |
| YD39-007 |
30 Ton |
35-ton special equipment trailers |
Grade 12.9 M14 |
Key Features
Military-Grade Construction
- Integral forged ultra-high-strength alloy steel body (600-700MPa tensile strength)
- 28mm solid shank with reinforcing ribs (500-600MPa shear strength)
- Precision mounting holes (±0.3mm tolerance) with reinforced walls
Durable Protection
- Three-layer black powder coating (30-35μm thickness)
- 72-hour salt spray resistance, oil and scratch resistant
- High-frequency quenched hole walls for wear resistance
Global Compatibility
- ISO 1102 compliant with ≥99% traction efficiency
- Compatible with Volvo, Mercedes-Benz, Sinotruk heavy trucks
- Tested in -40℃ to 80℃ temperature cycles
Application Scenarios
Inter-City Cargo Transport (YD39-004)
5-ton capacity for medium heavy-duty trailers. Features easy installation with included positioning pins and standard bolts. Resists salt spray corrosion for coastal routes.
Construction Equipment Transport (YD39-006)
15-ton capacity for excavator trailers. Withstands dusty, bumpy job sites. Professional installation with ultrasonic flaw detection recommended.
Special Heavy Loads (YD39-007)
30-ton extreme capacity for wind turbine transport. Military-grade alloy withstands -40℃ cold and 80℃ heat. Requires professional installation team.
Frequently Asked Questions
Q: Why do bolts loosen after installation?
A: Typically caused by incorrect bolt grade or insufficient torque. Use specified bolt grades (8.8 for 004, 12.9 for 006/007) and tighten to recommended torque values (70-90N*m). Apply thread locker for vibration resistance.
Q: How to repair coating damage?
A: Sand affected area, apply matching touch-up paint (30μm thickness), and finish with salt spray-resistant wax. Inspect monthly for early detection.
Q: How to select the right model?
A: Consider: 1) Actual trailer weight (include 50% safety margin), 2) Operating environment, and 3) Tow vehicle compatibility. Consult our sizing guide for specific recommendations.
Q: What tests are required for YD39-007?
A: Three-phase verification: 1) Installation inspection (hole alignment, torque), 2) Static load test (30% capacity), and 3) Dynamic test run (50km no-load + 100km 30% load).
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