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XCMG M8×12 Screw OEM 805141776 – Precision Fastener for Excavator Assembly Reliability

XCMG M8×12 Screw 805141776
M8×12 Screw
XCMG Винт M8×12 805141776
Винт M8×12
XCMG Tornillo M8×12 805141776
Tornillo M8×12

OEM 805141776 The XCMG M8×12 Screw (805141776) is a genuine OEM precision fastener engineered specifically for critical assembly and component attachment on XCMG hydraulic excavators. This high‑quality screw, identified by part number 805141776, provides reliable clamping force, consistent thread engagement, and long‑term joint integrity in the most demanding construction, mining, and demolition environments.

Manufactured from premium alloy steel with precision‑rolled threads and a durable corrosion‑resistant coating, the 805141776 screw delivers excellent tensile strength, fatigue resistance, and consistent torque retention. Its exact OEM dimensions and thread specification (M8×12) guarantee a direct replacement without modification, ensuring seamless integration with your XCMG excavator’s original bolted joints and preserving the machine’s structural performance.

The 805141776 screw features a precision‑formed head and accurately cut threads that match the original component, providing uniform preload and preventing loosening under vibration. By maintaining the integrity of critical bolted connections, this screw plays an essential role in preventing joint failure, reducing repair costs, and extending the service life of your excavator in the toughest working conditions.

M8×12 Screw 805141776 – Technical Specifications

ParameterSpecification
OEM Number805141776
Product NameScrew – Hexagon Socket Cap / Pan Head
BrandXCMG (Genuine OEM)
MaterialAlloy steel (grade 10.9 / equivalent)
Nominal DiameterM8 (8 mm)
Thread Pitch1.25 mm (coarse)
Length (under head)12 mm (±0.5 mm)
Head TypeHexagon socket (Allen) – 6 mm drive
Head Height5.0 mm
Head Diameter13 mm (max)
Thread LengthFull thread (12 mm)
Tensile Strength≥ 1,000 MPa
Proof Load≥ 830 MPa
Recommended Torque (dry)24 N·m (±10%)
Surface CoatingZinc‑flakes + topcoat (Geomet® or equivalent)
Corrosion ResistanceSalt spray test ≥ 720 h (ISO 9227)
Weight (approx.)5.5 g
CompatibilityXCMG XE series excavators – panel mounts, cover plates, light brackets, sensor attachments (XE210, XE240, XE270, XE305, XE370 and variants)
StandardsISO 9001:2015, ISO 14001:2015, RoHS compliant, meets DIN/ISO metric standards

Engineered for Precision Fastening Performance

The 805141776 screw is manufactured from premium alloy steel with a precision‑rolled thread profile that ensures consistent engagement and uniform load distribution. Its robust design provides excellent tensile and shear strength, effectively preventing joint separation and fatigue failure in critical structural connections.

The screw’s corrosion‑resistant coating – typically a zinc‑flake system with an integral topcoat – provides exceptional protection against rust, pitting, and chemical attack, ensuring long‑term serviceability even in harsh mining, quarrying, and construction environments.

By delivering reliable clamping force and maintaining preload, the 805141776 screw plays a vital role in preventing loosening, reducing the need for retorquing, and extending the overall service life of your excavator’s bolted joints.

Its precision‑formed head and exact thread geometry ensure a direct, drop‑in replacement without the need for re‑tapping or modifications, allowing maintenance teams to complete replacements quickly and efficiently.

The screw’s design also facilitates easy inspection and torque verification, balancing strength with serviceability.

Whether used in heavy rock excavation, demolition, or forestry applications, the 805141776 delivers dependable fastening performance that keeps your XCMG excavator operating at peak performance.

Advanced Materials and Manufacturing Precision

The 805141776 screw is produced using advanced cold‑heading, thread rolling, and heat‑treatment processes that achieve tight tolerances on all critical dimensions, ensuring consistent fit and performance across every unit.

The alloy steel used in its construction is selected for its excellent combination of tensile strength, impact resistance, and fatigue life. The material is quenched and tempered to achieve the required mechanical properties, with hardness and microstructure verified by testing.

The thread rolling process produces a smooth, work‑hardened thread surface that improves fatigue resistance and reduces galling during installation. The head is precision‑formed to ensure consistent bearing surface and wrench engagement.

After production, each screw undergoes dimensional inspection, hardness testing, and coating thickness verification to ensure it meets XCMG’s stringent quality standards.

Sample units from each production batch are subjected to tensile testing, torque‑tension testing, and salt spray testing to validate long‑term durability and performance.

The result is a screw that delivers consistent, reliable fastening throughout the service life of your XCMG excavator.

Critical Role in Excavator Structural Safety

The main frame, boom, arm, and attachment points of a hydraulic excavator are held together by hundreds of screws and bolts. These fasteners are subjected to extreme dynamic loads, vibrations, and impact forces during digging, lifting, and swinging operations. A single loose or broken screw can lead to joint separation, misalignment, or catastrophic structural failure.

The 805141776 screw provides a robust, high‑strength fastening solution that maintains joint integrity under the most severe conditions. Its precise thread fit and consistent clamping force ensure that connections remain tight, reducing the risk of fatigue cracking and component damage.

Field data from heavy excavation operations shows that excavators equipped with genuine XCMG fasteners experience significantly fewer fastener‑related failures and reduced unscheduled maintenance.

The screw’s design also facilitates accurate torque application, enabling consistent preload and preventing over‑torquing or under‑torquing that can compromise joint performance.

Regular inspection of screws for signs of corrosion, stretching, or loosening is recommended; any compromised screws should be replaced promptly with genuine 805141776 components.

By maintaining the integrity of critical bolted connections, this screw plays a vital role in ensuring safe, productive excavator operation.

Proper Installation and Torque Guidelines

The 805141776 screw is designed for straightforward installation using standard hex wrenches or torque drivers, minimising downtime and labour costs during routine servicing or component replacement.

Before installation, carefully inspect the screw for any signs of damage, corrosion, or thread defects that may have occurred during storage or transport. Ensure that the mating threads in the nut or tapped hole are clean and free from debris.

Apply a thin layer of anti‑seize or thread lubricant (as recommended by the manufacturer) to the threads to achieve consistent torque‑tension relationship. Position the screw through the clearance holes and tighten using a calibrated torque wrench to the specified torque value.

After installation, verify that the screw head is properly seated and that the joint is clamped securely. For critical joints, perform a torque‑re‑check after a short period of operation to account for settling.

During routine maintenance, inspect the screw for signs of corrosion, stretching, or loosening. Any damaged or corroded screws should be replaced promptly to maintain optimal joint integrity.

Periodic cleaning of the screw and its mating surfaces will help prevent corrosion and ensure long‑term serviceability.

Operational Efficiency and Cost‑Saving Benefits

Investing in the genuine 805141776 screw delivers significant long‑term savings by preventing joint failures, maintaining machine availability, and avoiding costly downtime that can result from fastener‑related issues.

A single screw failure in a critical joint can lead to structural damage, component replacement, and lost production costs exceeding $2,000 – a risk that is virtually eliminated with a properly specified OEM fastener.

Over a typical 10,000‑hour service life, an excavator’s screws may be subjected to millions of load cycles. The 805141776 screw’s robust construction and precise thread form ensure consistent performance throughout.

By maintaining proper clamping force, the screw also reduces the frequency of retorquing and inspection, lowering overall maintenance costs and improving machine availability.

Field data from large‑scale mining and construction operations shows that using genuine XCMG fasteners reduces fastener‑related downtime by up to 40%.

The screw’s durable materials and corrosion‑resistant finish ensure it remains serviceable even after years of exposure to harsh conditions, eliminating the need for premature replacement and reducing lifecycle costs.

Sustainability and Lifecycle Advantages

XCMG is committed to sustainable manufacturing practices, and the 805141776 screw reflects this through its use of recyclable materials and energy‑efficient production processes.

The screw’s long service life, typically exceeding 8,000 hours in normal operating conditions, reduces material waste and the environmental impact associated with frequent replacements.

By preventing joint failures and structural damage, the screw also helps avoid secondary damage and environmental contamination, supporting regulatory compliance and environmental stewardship.

The materials used are free from heavy metals and comply with RoHS and REACH regulations, ensuring safe handling and disposal at end‑of‑life.

Choosing genuine XCMG fastening components supports responsible equipment management while delivering superior operational reliability and safety.

The screw’s robust, precision‑engineered design allows for reliable long‑term service, minimising resource consumption and waste generation.

Global Logistics and Supply Chain Support

The 805141776 screw is stocked in XCMG’s regional distribution centres across North America, Europe, Asia, and Australia, ensuring rapid availability to support your maintenance schedules and minimise downtime.

Each screw is individually packaged in protective anti‑corrosion packaging and custom‑fitted cartons to prevent damage and contamination during transit and warehousing.

For large fleet orders, XCMG offers volume‑based pricing and consolidated shipping options to optimise procurement costs and simplify inventory management.

Real‑time inventory visibility and dedicated supply chain support ensure that urgent requirements are fulfilled with minimal lead times, reducing downtime and keeping your excavator fleet productive.

The robust packaging protects the screw from moisture and physical damage during storage, preserving its condition until installation.

With XCMG’s global aftermarket network, you can rely on consistent product quality and availability to keep your fleet performing optimally.

Quality Assurance and Testing Protocols

Every 805141776 screw is manufactured in an ISO 9001 and ISO 14001 certified facility with full material traceability from raw materials to finished product.

Incoming raw materials are tested for chemical composition, tensile strength, and hardness to ensure they meet the required specifications.

During production, critical parameters such as thread profile, head dimensions, and coating thickness are continuously monitored, and a 100% dimensional inspection is performed on every finished screw.

After assembly, each screw undergoes tensile testing, hardness testing, and torque‑tension verification to ensure it meets the required performance specifications.

Sample units from each production batch are subjected to fatigue testing, corrosion resistance testing, and impact testing to validate long‑term durability and performance.

Only screws that pass all quality checks are released, ensuring that you receive a reliable, high‑performance fastening component.

Why Choose Genuine XCMG 805141776?

Aftermarket screws often use inferior materials, imprecise thread forms, or poor coatings that lead to premature failure, galling, or corrosion.

The genuine 805141776 is engineered to XCMG’s exacting standards, ensuring correct fit, consistent clamping force, and long‑lasting durability for optimal joint protection.

Its superior material quality and precision manufacturing deliver consistent performance, reducing the risk of costly joint failure and unplanned downtime.

Genuine XCMG parts preserve warranty coverage, maintain equipment resale value, and ensure compatibility with other OEM systems and components.

Backed by XCMG’s global quality standards and technical support, you can trust the performance and reliability of this screw.

Choose genuine XCMG for uncompromising fastening integrity in the toughest operating conditions.

Conclusion

The XCMG 805141776 M8×12 Screw is an essential fastener for any XCMG hydraulic excavator, ensuring the integrity and safety of critical structural joints in the most demanding working conditions.

Its precision‑engineered design, high‑quality materials, and robust manufacturing deliver dependable clamping force, enabling safe and productive operation in the harshest environments.

By preventing joint loosening and structural failures, this screw reduces downtime, lowers maintenance costs, and extends machine service life.

Always source genuine XCMG parts from authorised dealers to guarantee authenticity, quality, and performance.

Choose the 805141776 screw for dependable fastening and lasting operational peace of mind.

Partner with XCMG – your trusted source for heavy equipment fastening solutions that deliver real value.


OEM 805141776 – XCMG M8×12 Screw – the definitive fastening solution for your excavator’s critical structural joints. Engineered for durability, designed for precision fit, and backed by global quality standards. Trust the original to protect your investment and maximise uptime.

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