The ZQ151B18130TF2 hexagon head bolt is not just a standard fastener – it is a precision component that guarantees joint integrity under extreme loads. Designed specifically for heavy‑duty trucks, this bolt resists loosening caused by constant vibration, maintains its preload across wide temperature swings, and delivers outstanding shear and tensile strength. Every bolt is manufactured to exacting tolerances and undergoes rigorous quality checks to ensure it meets the strictest OEM standards, giving you absolute confidence in every critical connection.
Premium Alloy Steel
Made from chromium‑molybdenum steel (42CrMo4) for superior strength and fatigue life.
Advanced Corrosion Shield
Zinc plating with yellow chromate provides excellent rust and oxidation resistance.
Precision‑Rolled Threads
M18 x 1.5 fine thread ensures smooth assembly, consistent torque, and reduced galling.
Grade 10.9 Strength
Rated at 1040 MPa tensile strength, offering outstanding load‑carrying capacity.
| Parameter | Specification |
|---|---|
| OEM Number | ZQ151B18130TF2 |
| Product Name | Hexagon head bolts |
| Thread Size | M18 x 1.5 (metric fine) |
| Nominal Length (under head) | 130 mm |
| Material | Alloy steel (42CrMo4 / SCM440) |
| Property Class | 10.9 (ISO 898‑1) |
| Tensile Strength (min) | 1040 MPa |
| Yield Strength (min) | 940 MPa |
| Surface Finish | Zinc plated + yellow chromate (≥ 8 µm) |
| Temperature Range | -40°C to +150°C |
| Recommended Torque (dry) | 210 – 230 Nm |
| Design Standard | DIN 931 / ISO 4014 / Q151B |
| Thread Tolerance | 6g (external) per ISO 965 |
The ZQ151B18130TF2 hexagon head bolt is widely used across the HOWO and Sitrak model ranges, particularly in high‑stress chassis and powertrain areas. Based on official parts catalogs, this bolt is a critical fastening element in the STR front drive axle steering knuckle, as well as in thrust rod (推力杆) connections and suspension linkages. Additional applications include:
The ZQ151B18130TF2 hexagon head bolts are produced using state‑of‑the‑art cold‑heading and heat‑treatment technologies, resulting in a uniform, fine‑grained microstructure that offers an ideal balance of hardness and ductility. Each production batch is subjected to 100% dimensional inspection, thread profile verification, and mechanical property testing to ensure consistency. The zinc plating with yellow chromate not only gives the bolt a professional appearance but also provides a sacrificial layer that protects against galvanic corrosion, making it suitable for use with aluminum, cast iron, and steel components alike. This bolt is built to meet the exacting standards of Sinotruk (China National Heavy Duty Truck Group), the manufacturer of HOWO and Sitrak trucks, ensuring perfect fit and performance.
100% Dimensional Control
Laser‑measured head height, across‑flats, and thread pitch for absolute accuracy.
Proof Load Verified
Every lot is proof‑load tested to exceed 830 MPa, guaranteeing strength.
Stable Friction Coefficient
Special coating ensures consistent torque‑tension relationship for reliable tightening.
Fatigue‑Optimized Design
Enhanced thread root radius reduces stress risers, extending service life under cyclic loads.
For optimal performance of ZQ151B18130TF2 hexagon head bolts, always follow these professional installation practices. Thoroughly clean both the bolt threads and the mating holes using a suitable solvent to eliminate any oil, dirt, or old thread‑locking compound. Apply a thin, even layer of high‑quality thread lubricant or anti‑seize (unless dry torque is specified) to reduce friction and achieve accurate preload. Use a calibrated torque wrench set to the recommended 210‑230 Nm, and for critical joints, employ the torque‑angle method to ensure proper bolt stretch. Always re‑torque critical fasteners after the initial operating period to compensate for any joint settlement.
Choosing ZQ151B18130TF2 hexagon head bolts means investing in safety, durability, and cost‑effective maintenance. These bolts are manufactured to the same grade and specifications as genuine OEM parts, ensuring seamless interchangeability with your HOWO or Sitrak truck. Fleet operators and workshop technicians worldwide rely on these fasteners to reduce unplanned downtime, prevent joint loosening and premature failures, and maintain the structural integrity of their vehicles. Whether used in highway transport, mining, construction, or logging, these bolts deliver consistent performance and peace of mind on every mile.
“We have used ZQ151B18130TF2 hexagon head bolts on our entire fleet of HOWO‑7 trucks for over two years. The consistent quality, perfect fit, and excellent corrosion resistance have dramatically reduced our fastener‑related issues and maintenance costs.”
The ZQ151B18130TF2 hexagon head bolt is designed as a direct replacement for the original fasteners used across the HOWO and Sitrak product lines. It is fully compatible with HOWO‑7, HOWO T series, HOWO A7, as well as Sitrak C7H, T7H, and M5G models. It is also a critical fastener in STR (Steyr) front drive axle assemblies, making it a versatile component for various vehicle configurations. Whether you are rebuilding a steering knuckle, replacing thrust rod bushes, overhauling suspension arms, or performing a full chassis restoration, these bolts meet the exact dimensional and mechanical requirements specified by Sinotruk. Always confirm the OEM number ZQ151B18130TF2 to ensure correct application.
Heavy trucks must endure some of the harshest operating conditions imaginable – from sub‑zero Arctic temperatures to scorching desert heat, from muddy construction sites to salt‑laden coastal roads. The ZQ151B18130TF2 hexagon head bolt is engineered to perform reliably in all these environments. Its low‑temperature impact toughness prevents brittle failure at -40°C, while its high‑temperature stability retains mechanical properties up to +150°C. The zinc plating with chromate conversion offers robust protection against white and red rust, even after prolonged exposure to moisture, road salts, and aggressive chemicals. This bolt is designed to keep critical joints secure, reducing the risk of catastrophic fastener failure and enhancing overall vehicle safety.
Arctic‑Grade Toughness
Charpy impact tested at -40°C, ensuring no brittle fracture.
High‑Temperature Stability
Retains >90% of tensile strength at 150°C for sustained hot‑zone performance.
Corrosion Protection
Passes 240‑hour salt spray test (ASTM B117) without red rust.
Vibration Resistance
Optimized thread geometry and high preload significantly reduce self‑loosening risks.
The ZQ151B18130TF2 hexagon head bolts are supplied in durable, protective packaging to ensure they arrive in pristine condition. Each bolt is individually inspected and sleeved to prevent surface damage. Standard packaging options include 10, 50, and 100 pieces per box, with bulk quantities available for workshops and large fleet operations. Every package is clearly labeled with the OEM number ZQ151B18130TF2, product name, grade, and dimensions for easy identification. Always verify the label to ensure you are receiving genuine, high‑quality fasteners that meet Sinotruk’s original equipment specifications.
OEM: ZQ151B18130TF2 | Genuine HOWO / Sitrak Fastener – Grade 10.9
Choose ZQ151B18130TF2 hexagon head bolts – the professional‑grade fasteners that deliver unmatched strength, precise engineering, and lasting reliability for your HOWO or Sitrak truck.
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