- ADDRESS：Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
The BY1000549569 Bolt is a critical, high-strength threaded fastener engineered to exacting standards for the assembly and repair of SHACMAN heavy-duty trucks. As a fundamental component within the vast range of Shacman truck parts, this genuine OEM bolt, identified by the part number BY1000549569, provides the essential clamping force required to secure critical components under extreme stress, vibration, and thermal loads. Manufactured from premium alloy steel and subjected to rigorous heat treatment, the BY1000549569 bolt ensures consistent tensile strength, reliable thread engagement, and exceptional fatigue resistance.
Its precision dimensions and specified grade guarantee a perfect fit and optimal performance in applications ranging from engine blocks and cylinder heads to chassis frames and suspension mounts, forming the very foundation of your truck’s structural and mechanical integrity.
Bolt
Болт
High-Grade Alloy Steel with Heat Treatment: The BY1000549569 bolt is forged from high-quality medium carbon alloy steel (e.g., Grade 8.8, 10.9, or 12.9), then heat-treated and tempered to achieve a precise balance of tensile strength, yield strength, and ductility for demanding applications.
Precision-Rolled Threads for Optimal Clamp Load: Features accurately rolled threads with consistent pitch and profile. This cold-forming process strengthens the grain structure of the metal, reducing stress concentrations and ensuring even load distribution for reliable torque-to-clamp force conversion.
Corrosion-Resistant Electroplated or Coated Finish: Treated with a durable surface coating such as zinc plating (often with yellow or blue chromate conversion), hot-dip galvanizing, or dacromet to provide excellent protection against rust, oxidation, and chemical exposure in harsh operating environments.
Engineered Head Design and Drive Type: Designed with a specific head style (hex, flange, socket) and drive type (e.g., hex socket, external hex) that provides optimal tool engagement, prevents rounding, and allows for accurate torque application in confined spaces.
The table below details the critical technical specifications for the genuine SHACMAN BY1000549569 Bolt. This data is essential for correct selection, torque specification, and compatibility.
| Parameter | Value / Description |
|---|---|
| OEM Part Number | BY1000549569 |
| Product Name | Bolt |
| Brand | SHACMAN |
| Material | Medium Carbon Alloy Steel (e.g., 34CrMo4, SCr440) |
| Strength Grade | Grade 10.9 (Common for high-stress applications) |
| Thread Specification | Metric Coarse or Fine (e.g., M12 x 1.75, M14 x 2) |
| Length | Under Head Length (e.g., 40mm, 60mm, 90mm) – Application Specific |
| Diameter | Nominal Thread Diameter (e.g., M12, M14, M16) |
| Head Style | Hexagon Head (Hex Bolt), Flange Head, Socket Head Cap |
| Drive Type | External Hex (for wrench/socket), Internal Hex (Allen key) |
| Surface Finish/Coating | Zinc Plated with Chromate, Geomet, or Phosphate Coating |
| Proof Load / Tensile Strength | Grade 10.9: Minimum 1040 MPa Tensile Strength |
| Common Applications | Engine Mounting, Cylinder Head, Connecting Rod, Flywheel, Suspension U-Bolt, Frame Crossmember |
| Compatible SHACMAN Models | F2000, F3000, X3000 series and other models requiring high-strength fasteners in critical assemblies. |
Always use the specified BY1000549569 bolt with the correct matching nut grade, washers, and torque specifications as per SHACMAN service manuals.
The BY1000549569 Bolt is not merely a fastener; it is a critical load-bearing element in a mechanical joint. Its primary function is to clamp two or more parts together with a force that exceeds the operational forces trying to separate them.
In engine assemblies, these bolts must withstand combustion pressures, thermal expansion, and intense vibrations without loosening or fatiguing. A failure here can lead to catastrophic engine damage.
Within the chassis and suspension, bolts like the BY1000549569 secure components that manage steering, braking, and load-bearing forces. Their integrity is directly linked to vehicle stability and safety.
The bolt works by converting the torque applied during installation into a precise tensile preload (clamp force). This preload keeps the joint tight, prevents relative movement, and ensures even load distribution across the connected parts.
Using a bolt with incorrect strength, dimensions, or material can result in under-torquing (leading to loosening and joint failure) or over-torquing (leading to bolt stretching, thread stripping, or fracture).
Therefore, the specification of the BY1000549569 is a result of precise engineering calculations to ensure the safety, reliability, and longevity of the assembly it is designed for.
1. Ensure the bolt, nut (if applicable), and threaded holes are clean, dry, and free of debris, rust, or old threadlocker. Damaged threads must be repaired.
2. Lightly lubricate the bolt threads and under-head bearing surface with the specified lubricant (e.g., engine oil, moly paste, or dry). This dramatically affects the torque-tension relationship.
3. Hand-start the BY1000549569 bolt to ensure smooth, cross-thread-free engagement. Never force a bolt that does not turn easily.
4. For critical assemblies (cylinder head, connecting rod), follow the exact tightening sequence and multi-stage torque procedure outlined in the service manual.
5. Use a calibrated torque wrench to tighten the bolt to the specified torque value. For angle-torque procedures, use an angle gauge after reaching the initial snug torque.
6. Always use the correct size and type of socket or wrench that fits snugly to avoid rounding the bolt head. A six-point socket is preferred for high torque.
7. For bolts specifying re-torquing after a heat cycle (e.g., cylinder head), allow the engine to cool completely and follow the procedure precisely.
• During disassembly, inspect each BY1000549569 bolt for signs of stretching (necking down), thread galling, corrosion pitting, or cracks, especially under the head and in the thread run-out area.
• Measure bolt length with a caliper and compare it to the specification for new bolts. Permanent elongation beyond a specified limit indicates over-stressing and mandates replacement.
• Check threads for wear or damage. A bolt that feels loose when hand-threaded into a clean nut or tapped hole should be replaced.
• Many high-stress bolts, like connecting rod or main bearing cap bolts, are designated as “stretch bolts” or one-time-use. The BY1000549569 must be replaced if specified as such by SHACMAN.
• Keep a complete set of new bolts for critical assemblies on hand to avoid downtime. Never reuse a questionable bolt in a safety-critical application.
• Maintain a log of bolt replacements for major assemblies as part of the vehicle’s comprehensive maintenance history.
Torque specification is non-negotiable. Using an uncalibrated tool or guessing the torque can lead to joint failure. Always reference the official SHACMAN workshop manual for the BY1000549569 bolt’s specific procedure.
Choosing the authentic BY1000549569 bolt guarantees material integrity, dimensional accuracy, and mechanical properties that have been validated by SHACMAN engineering for the specific application.
Counterfeit or generic bolts may have incorrect or inconsistent alloy composition, improper heat treatment, or substandard plating. This can lead to hidden brittleness, lower fatigue strength, or premature corrosion.
The genuine bolt is manufactured with tight tolerances on thread pitch, root radius, and head dimensions. This ensures consistent clamp load, proper tool fit, and reliable performance batch after batch.
Using the specified OEM fastener is the only way to ensure the joint behaves as designed under all operating conditions, maintaining safety factors and preventing unexpected failures.
In warranty and liability contexts, the use of non-approved fasteners can absolve the manufacturer of responsibility for related failures. The BY1000549569 provides traceability and assurance.
Master engine builders emphasize that the quality of fasteners like the BY1000549569 is as important as the quality of the components they hold together. They are the “glue” of the assembly.
Fleet maintenance supervisors report that standardizing on OEM bolts reduces comebacks due to mysterious leaks, noises, or failures often traced to incorrect or failed fasteners.
Metallurgists point out that the controlled heat treatment of genuine bolts creates a specific microstructure that offers the best combination of strength and toughness to resist shock loads.
Quality assurance engineers highlight that genuine bolts undergo batch testing for hardness, tensile strength, and thread integrity, providing a level of certainty that aftermarket parts often lack.
Rebuild shops find that using the correct OEM bolts, such as the BY1000549569, gives their customers confidence in the longevity and reliability of their overhauled assemblies.
The BY1000549569 bolt contributes to vehicle reliability by preventing joint failures that can cause breakdowns, accidents, and costly secondary damage to more expensive components.
A properly fastened joint ensures optimal performance of the assembled system, whether it’s sealing combustion gases in an engine or maintaining alignment in a suspension.
The durability and corrosion resistance of the genuine bolt extend service intervals and reduce the frequency of replacements, minimizing waste from discarded fasteners and associated parts.
By ensuring leak-free seals (e.g., in fluid systems), it prevents contamination of the environment with oils, fuels, or coolants.
Investing in high-quality, long-lasting fasteners aligns with sustainable maintenance practices by reducing the total number of parts consumed over the vehicle’s lifecycle.
Each production batch of genuine BY1000549569 bolts is accompanied by material certification (e.g., mill certificates) and is manufactured under a quality management system like ISO 9001.
The bolts are marked with the strength grade and often the manufacturer’s logo, providing immediate visual identification and traceability back to the source.
As an OEM component, it is the fastener specified in SHACMAN’s engineering drawings and is validated through rigorous testing, including fatigue and salt spray tests.
Purchasing from authorized channels ensures you receive bolts with guaranteed properties and full documentation, which is crucial for regulated industries and fleet compliance audits.
This level of assurance is critical when the cost of a fastener failure far exceeds the price of the bolt itself.
While a single BY1000549569 bolt has a low unit cost, its role in preventing catastrophic failure makes it one of the most cost-critical components on the truck.
A failed bolt can lead to an engine rebuild, a wheel-off incident, or a frame crack—repairs that cost thousands of times more than the fastener itself.
Using genuine bolts reduces labor time by ensuring first-time-fit and eliminating troubleshooting related to mysterious fastening issues.
For fleets, standardizing on OEM fasteners simplifies inventory, reduces the risk of using incorrect substitutes, and ensures consistent repair quality across all workshops.
The long-term value lies in maximizing vehicle uptime, preventing unsafe conditions, and protecting the substantial investment in the truck and its cargo.
The BY1000549569 is a specific part number for a specific bolt with defined diameter, length, thread pitch, strength grade, head style, and coating.
It is not interchangeable with bolts that may look similar. Using a bolt with a different length can result in insufficient thread engagement or bottoming out.
Using a bolt with a lower strength grade (e.g., 8.8 instead of 10.9) can lead to yielding and loosening under load. Using a higher grade unsuitably can lead to brittleness.
Always identify the old bolt’s markings and dimensions, or consult the parts catalog using your VIN to confirm the exact BY1000549569 specification for your repair.
For critical applications, SHACMAN may specify a bolt kit that includes all necessary bolts, washers, and nuts for an assembly. The BY1000549569 may be part of such a kit.
The BY1000549569 Bolt is the unsung hero of your SHACMAN truck’s construction, providing the reliable clamping force that holds everything together under the most punishing conditions.
Choosing the genuine SHACMAN part is a direct investment in safety, durability, and peace of mind. Trust the engineering embodied in every OEM fastener.
For your next repair, overhaul, or assembly, specify the authentic BY1000549569. Ensure every joint is secure, every component is properly aligned, and every journey is undertaken with confidence.
Do not compromise on the fundamentals. Build and maintain your truck on a foundation of genuine quality with BY1000549569.
We are a first-class heavy duty vehicles and spare parts supplier in China. which covers from engine, gearbox, cab, axle assemblies to main assembly accessories, electrical parts and other chassis parts like brake, clutch and steering parts.
A PROFESSIONAL CHINA TRUCK AND SPARE PARTS SUPPLIER
@Copyright DERUNA
