800169042 twelve-point head screw XCMG XE2000 excavator spare parts

XCMG XE2000 excavator twelve-head screws (part number 800169042): High-strength fastening, protecting the safety of critical component connections.

The slewing bearing, hydraulic cylinder body, and gearbox housing of the XCMG XE2000 excavator rely on high-strength screws for stable connections. Insufficient screw strength or loosening can easily lead to component displacement, abnormal noise, and even structural fracture, directly threatening operational safety. Dodecagonal head screws, with their advantages of multi-faceted force bearing and easy assembly/disassembly, have become the preferred fasteners for critical connections in heavy-duty equipment. This article focuses on the XCMG XE2000 original dodecagonal head screw (part number 800169042), a high-strength excavator fastener that, with its superior mechanical properties and precise fit, provides a solid “safety anchor” for component connections.

Precisely compatible with XE2000: Seamless integration with original factory specifications

These twelve-head screws (part number 800169042) are custom-made to strictly conform to the thread specifications (pitch, nominal diameter), shank length, head thickness, and countersunk hole size of the corresponding connection parts on the XCMG XE2000 excavator. The dimensional error is controlled within ±0.02mm, ensuring a perfect mesh with the original factory threaded holes. Whether fastening the slewing bearing flange, cylinder end cover, or fixing the gearbox housing, no tapping adjustment or replacement of the matching nut is required; they can be directly and precisely screwed in. The head fits tightly against the countersunk hole, eliminating “connection misalignment” or “head protrusion interference” caused by dimensional deviations. This ensures that every connection meets the original factory assembly torque standards, which is the core advantage of the XE2000-specific twelve-head screws.

High-strength material: tensile and torsional resistant, corrosion and wear resistant

Made of high-strength alloy structural steel (35CrMo or 40CrNiMo) and heat-treated (hardness reaches HRC30-35), it has excellent tensile and torsional properties: tensile strength ≥1000MPa, yield strength ≥800MPa, and can withstand the severe vibration and impact loads during XE2000 heavy-duty operations without the risk of breakage or stripping. The surface is treated with Dacromet or hot-dip galvanizing, and the salt spray test corrosion resistance time is ≥500 hours. It can resist the corrosion of moisture, oil, and dust at the construction site, does not rust or jam, and maintains easy disassembly and assembly even after long-term use. Its service life is more than 3 times longer than that of ordinary carbon steel screws.

Twelve-corner design: efficient force distribution and convenient maintenance

Compared to ordinary hexagonal screws, the twelve-head design offers two advantages: First, it has more contact surfaces (12 meshing surfaces), resulting in a tighter fit between the wrench and the head during tightening, leading to more even torque transmission and preventing head deformation caused by localized stress concentration. Second, it offers greater adaptability to different installation and removal spaces, allowing for operation in narrow areas with dense components without significant wrench angle adjustments, thus improving maintenance efficiency. Furthermore, the head features built-in anti-loosening grooves (as per original factory design), which, when tightened with a torque wrench, effectively resist loosening caused by vibration. This provides 60% higher anti-loosening reliability than ordinary screws, making it a typical anti-loosening fastening screw for excavators.

As a high-strength fastener for construction machinery, the XCMG XE2000 excavator twelve-head screw (part number 800169042) is an essential accessory for maintaining the original factory connection strength and ensuring the safe operation of the excavator under heavy loads. Choosing original factory screws means choosing structural safety and long-term operational stability.

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800169243 auxiliary cooling system parts XCMG XE2000 excavator spare parts

1 800138360 BOLT
2 800169149 BOLT
3 800168954 BOLT
4 800169054 BOLT
5 800169089 BOLT
6 800147862 MAT
7 800138362 MAT
8 860149559 MAT
9 800169061 PIPEPLUG
10 800168993 HEXAGONSCREW
11 800167065 HEXAGONSCREW
12 800169042 TWELVE-POINT HEAD SCREW
13 800168883 TWELVE-POINT HEAD SCREW
14 860149612 WATERDELIVERYCONNECTION GASKET
15 800168995 WASHER
16 800167088 WASHER
17 800169013 CHECKNUT
18 800169021 U-TYPE BOLT CLIP
19 800167213 THERMOSTATSEAL
20 800167120 PIPEPLUG
21 800167007 PIPEPLUG
22 800168899 WATEROUTLETCONNECTION
23 800168991 THERMOSTATHOUSINGGASKET
24 800168963 THERMOSTATHOUSINGCOVER
25 800169140 BYPASSWATERPIPE
26 800168923 WATERDELIVERYCONNECTION GASKET
27 800168994 WATERDELIVERYPIPE
28 800169086 WATERDELIVERYPIPE
29 800168974 FLEXIBLE COUPLING
30 800169156 WATERPIPEBRACKET
31 800168992 WEARPAD
32 800168901 WATERDELIVERYPIPE
33 800168893 THERMOSTATSEAT

XCMG XE2000 Dodecagonal Head Screws
800169042 Genuine parts
High-strength fastening screws for excavators
XE2000 Dedicated Dodecagonal Screws
Excavator anti-loosening fastening screws
High-strength fasteners for construction machinery