SANY 61005491 Socket Head Cap Screw – High-Grade Fastener for PTO Systems
61005491
Screw, Socket Head Cap
Винт с шестигранной головкой
Tornillo de cabeza hueca
OEM: 61005491
The heavy-duty SANY parts reference 61005491 corresponds to the genuine Screw, Socket Head Cap – a high-strength fastener designed for critical applications in SANY heavy-duty trucks, PTO shafts, and mining equipment assemblies. This grade 10.9 socket head cap screw ensures reliable, vibration-resistant fastening in high-stress environments, delivering consistent clamping performance under extreme operational conditions.
With OEM number 61005491, this replacement part guarantees exact fitment and factory-grade durability. Each unit is manufactured from premium alloy steel through advanced forging and precision machining processes, ensuring superior tensile strength and fatigue resistance. The socket head design allows for positive torque transmission using standard Allen key tools, enabling precise fastening in confined spaces where standard wrenches cannot access. The precision-rolled threads ensure consistent clamp load and secure connections, making the 61005491 socket head cap screw an essential component for maintaining structural integrity in critical powertrain assemblies.
Whether you are servicing a SANY PTO Shaft, rebuilding an engine bracket group, or performing scheduled maintenance on heavy machinery, this socket head cap screw delivers unmatched fastening reliability. The 61005491 screw is engineered to withstand high torque loads, repetitive stress cycles, and extreme vibration while maintaining precise clamp force throughout its service life. Its Grade 10.9 classification provides superior tensile strength and fatigue resistance, making it suitable for high-stress applications where joint integrity is paramount. The surface treatment provides excellent corrosion resistance, ensuring reliable performance in harsh mining and construction environments.
61005491 Socket Head Cap Screw – Critical Fastening Solution for Powertrain Systems
The socket head cap screw 61005491 is a critical fastening component within SANY’s PTO Shaft system, which represents a precision-engineered power transmission component delivering reliable torque transfer from the engine to auxiliary equipment in heavy-duty applications. Six units of the 61005491 socket head cap screw are used per PTO Shaft assembly, where they fasten the Cover and Plate components that protect the internal drive mechanism, demonstrating its essential role in maintaining system integrity.
The SANY PTO Shaft assembly combines robust construction with precise engineering to ensure optimal performance under demanding operational conditions. The assembly is protected by durable Cover and Plate components, fastened with precision Socket Head Cap Screw fasteners that ensure vibration-resistant security, even under high-torque operation in mining environments. A key Flange connection provides secure mounting to adjacent components, while specialized bearing assemblies provide exceptional load-bearing capacity and rotational stability. The comprehensive design of the SANY PTO Shaft ensures efficient power transmission, minimal maintenance requirements, and extended service life.
The 61005491 socket head cap screw also appears in other major SANY assemblies. In the SANY Engine Bracket Group, which is a critical mounting system engineered to provide exceptional stability and vibration dampening for engines in heavy machinery, high-strength fasteners maintain reliable, long-lasting connections between the engine and chassis, enhancing overall operational safety. Secure attachment is achieved through multiple high-grade fasteners designed to withstand extreme torque and vibrational stresses.
In the SANY Cylinder Head Group – a precision-engineered assembly designed for ultimate durability and performance in heavy-duty machinery – high-grade fasteners maintain the structural integrity of the assembly under extreme pressures and temperatures. The Grade 10.9 property class of the 61005491 screw provides the superior tensile strength required for these critical engine applications. Across the SANY SKT series mining dump truck lineup, including the SKT90S, SKT105S, and SKT130S models, the 61005491 fastener contributes to the overall reliability of these heavy-duty vehicles designed for open-pit mines and off-road construction sites with payload capacities up to 100 tons.
Technical Specifications – OEM 61005491 Socket Head Cap Screw
| Parameter | Value / Description |
|---|---|
| OEM Number | 61005491 |
| Product Name | Screw, Socket Head Cap |
| Brand | SANY (Genuine OEM) |
| Manufacturing Standard | ISO 4762 / DIN 912 |
| Property Class | Grade 10.9 |
| Material | High-strength alloy steel (quenched and tempered) |
| Tensile Strength (min.) | 1040 MPa |
| Yield Strength (min.) | 940 MPa (0.2% offset) |
| Hardness (HRC) | 32 – 39 HRC |
| Nominal Diameter | M6 × 1.0 (coarse pitch) |
| Nominal Length | 25.0 mm (measured from bearing face to threaded end) |
| Thread Length | Fully threaded |
| Head Diameter (dk) | 10.0 mm (ISO 4762 standard for M6 grade) |
| Head Height (k1) | 6.0 mm (ISO 4762 standard for M6 grade) |
| Socket Size | 5.0 mm (Allen key / hex key drive) |
| Surface Treatment | Zinc-nickel anti-corrosion coating (ZNBHL) |
| Corrosion Resistance | 480 h salt spray (ASTM B117) |
| Thread Standard | ISO metric coarse thread (6g tolerance class) |
| Drive Type | Hexagon socket (Allen key drive) |
| Recommended Torque (dry) | 35 – 45 Nm (using Class 10.9 standard for M6) |
| Recommended Torque (lubricated) | 28 – 36 Nm (reduce by approx. 20%) |
| Applicable Assemblies | SANY PTO Shaft, Engine Bracket Group, Cylinder Head Subassembly, Cover and Plate assemblies |
| Quantity per PTO Shaft Assembly | 6 units |
Key Engineering Advantages – 61005491 Socket Head Cap Screw
- Grade 10.9 high-strength alloy steel for exceptional durability and fatigue resistance
- Precision-manufactured threads conforming to ISO 4762 and DIN 912 standards
- Socket head design enables positive torque transmission using standard Allen key tools
- Zinc-nickel anti-corrosion coating provides superior rust protection for harsh environments
- Drop-in replacement for original SANY part number 61005491
- Fully threaded design provides consistent clamp force across the entire engagement length
- 100% dimensional inspection and thread quality verification per batch
- Traceable batch number for quality assurance and fleet maintenance auditing
- Resists vibration-induced loosening in heavy-duty PTO and engine applications
- Extends PTO shaft assembly service intervals by maintaining consistent clamp force
Equipment Compatibility & Vehicle Applications
The genuine Socket Head Cap Screw (OEM 61005491) is a versatile fastener widely used across multiple SANY heavy-duty systems. It is a critical component in the SANY PTO Shaft system, where six units are required per assembly to secure the Cover and Plate components that protect the PTO drive mechanism. The PTO Shaft represents a precision-engineered power transmission component delivering reliable torque transfer from the engine to auxiliary equipment in heavy-duty applications.
The 61005491 socket head cap screw also appears in other major SANY assemblies. In the SANY Engine Bracket Group, which is a critical mounting system engineered to provide exceptional stability and vibration dampening for engines in heavy machinery, high-strength fasteners maintain reliable, long-lasting connections between the engine and chassis, enhancing overall operational safety. Secure attachment is achieved through multiple high-grade Hexagon Flange Bolt fasteners, designed to withstand extreme torque and vibrational stresses, ensuring a reliable, long-lasting connection that enhances overall operational safety.
In the SANY Cylinder Head Subassembly – a meticulously engineered core component representing the pinnacle of durability and precision in engine construction – precision fasteners maintain the structural integrity of the assembly under extreme pressures and temperatures. The Cylinder Head Subassembly incorporates hardened Intake Valve Seat and Exhaust Valve Seat inserts to withstand extreme temperatures and repetitive valve impacts. It is securely fastened by high-tensile Cylinder Head Main Bolts, complemented by Secondary Bolts of Cylinder Head, ensuring a rigid and leak-proof seal under extreme pressure and thermal cycles.
Across the SANY SKT series mining dump truck lineup, including the SKT90S, SKT105S, and SKT130S models, the 61005491 fastener contributes to the overall reliability of these heavy-duty vehicles. The SKT105S features a Weichai WP13G530E310 engine delivering superior power of 390 kW at 2100 rpm and torque of 2300 Nm, while the transmission system uses a heavy-duty gearbox designed for rough terrain operation by optimizing torque distribution. The SKT130S is equipped with a high-performance engine delivering exceptional durability in challenging mining conditions. These trucks are designed for open-pit mines and off-road construction sites, with payload capacities ranging from 60 to 100 tons, and they rely on high-strength fasteners like the 61005491 to maintain structural integrity under extreme operational stresses.
Installation & Maintenance Guide for 61005491
Proper installation of the 61005491 socket head cap screw is essential for achieving maximum clamp force and ensuring long-term reliability in critical powertrain assemblies. Before installation, thoroughly clean the threaded hole using a non-abrasive solvent or compressed air to remove any debris, old thread-locking compound, or corrosion. Inspect both the screw threads and the mating hole for any signs of damage, burrs, or cross-threading to ensure proper engagement and consistent clamping force.
For applications subject to high vibration, such as PTO Shaft assemblies and engine mounting brackets, apply a small amount of medium-strength thread locker (such as LOCTITE 243) to the threads of the 61005491 screw before installation. Hand-thread the socket head cap screw fully into the hole before applying torque to prevent cross-threading damage. The socket head design accepts a 5.0 mm Allen key (hex key) for positive torque transmission. The fully threaded design provides consistent clamp force across the entire engagement length.
Using a calibrated torque wrench with the correct Allen key bit, tighten the 61005491 screw to the manufacturer’s recommended specification. For M6 Grade 10.9 screws on dry threads, the recommended torque range is 35–45 Nm. For lubricated threads, reduce torque by approximately 20% to 28–36 Nm to avoid over-tightening. Apply torque in a smooth, even motion without impact. If multiple screws are being installed on the same assembly (as in the case of the PTO Shaft Cover), tighten them in a crossing pattern to ensure even clamp force distribution across the entire joint interface.
After final torque application, mark the screw head with a torque stripe using an indelible marker. This allows for quick visual inspection to confirm that the fastener has not loosened during subsequent operation. For critical assemblies such as PTO Shaft components, re-check torque after the first 250 hours of operation, as initial settling may occur. Routine inspection intervals of 2,000 operating hours are recommended for assemblies secured with the 61005491 screw.
Check for signs of corrosion, thread damage, or torque relaxation during scheduled maintenance. If any screw shows visible rust, thread galling, or if the torque stripe indicates movement, replace it immediately with a new genuine 61005491 component. Never reuse this fastener after removal from critical high-stress applications, as the thread geometry may have undergone stretching or micro-fatigue, potentially compromising future clamping performance. In PTO Shaft assemblies, replace all six socket head cap screws simultaneously to maintain balanced clamp force and consistent vibration characteristics across the joint interface.
Always verify the part number 61005491 laser-engraved on the screw head. Authentic SANY socket head cap screws feature the SANY logo, property class “10.9” marking, and batch traceability code for quality assurance. In PTO Shaft assemblies, replace all six socket head cap screws simultaneously to maintain balanced clamp force and consistent vibration characteristics across the joint interface.
Quality Assurance – SANY Genuine 61005491
Every Socket Head Cap Screw (OEM 61005491) is produced in SANY’s IATF 16949 certified manufacturing facilities, meeting the highest international standards for automotive and heavy machinery fasteners. Each batch undergoes rigorous quality control, including 100% dimensional inspection using precision optical measurement equipment, thread GO/NO-GO gauge verification, hardness testing across multiple screws, and material composition analysis to ensure compliance with Grade 10.9 alloy steel specifications.
Manufacturing conforms to ISO 4762 (formerly DIN 912) dimensional standards, ensuring global interchangeability and consistent mechanical properties. The hexagon socket drive is precisely formed to provide full engagement with standard Allen key tools, reducing the risk of socket stripping under high torque loads. The Class 10.9 property class requires minimum tensile strength of 1040 MPa and minimum yield strength of 940 MPa at 0.2% offset, providing exceptional fatigue resistance and reliable clamping performance under dynamic loads.
Surface treatment consists of a zinc-nickel anti-corrosion coating (ZNBHL), providing 480 hours of salt spray protection (ASTM B117) and excellent resistance to environmental corrosion in mining and construction applications. The coating includes integrated lubricating particles that help achieve consistent torque-tension relationships during installation, ensuring repeatable and reliable assembly across all applications.
Material certificates are fully traceable to original steel mill heat numbers, providing complete transparency for fleet maintenance and quality auditing. SANY’s fastener durability testing has validated that the 61005491 socket head cap screw maintains 90% of its original clamp load after 500,000 vibration cycles, demonstrating exceptional fatigue resistance and reliability in the demanding environment of heavy mining equipment. Choose genuine SANY fastening components to protect your equipment investment and maintain factory torque specifications across all critical assemblies.
Global stock availability – ready for immediate dispatch. Each 61005491 socket head cap screw is individually packed in corrosion-inhibiting VCI packaging with a certificate of conformance. Upgrade your heavy machinery with precision fastening solutions from SANY, ensuring reliable power transmission and extended equipment life.
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