YD39-004~007 Pintle Hook Mounts: 5-30 Ton, Black Coat, for Cargo/Engineering/Special Transport
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.
| 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 | 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 |
- 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
- 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
- ISO 1102 compliant with ≥99% traction efficiency
- Compatible with Volvo, Mercedes-Benz, Sinotruk heavy trucks
- Tested in -40℃ to 80℃ temperature cycles
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.
15-ton capacity for excavator trailers. Withstands dusty, bumpy job sites. Professional installation with ultrasonic flaw detection recommended.
30-ton extreme capacity for wind turbine transport. Military-grade alloy withstands -40℃ cold and 80℃ heat. Requires professional installation team.
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.
A: Sand affected area, apply matching touch-up paint (30μm thickness), and finish with salt spray-resistant wax. Inspect monthly for early detection.
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.
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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