805238374 nut m16 XCMG XE2000 excavator spare parts

XCMG XE2000 M16 Nut (Part No. 805238374): A robust locking core for heavy-duty connections

In the assembly of heavy-duty components such as the boom connection, chassis support, and hydraulic pump mounting on the XCMG XE2000 excavator, the M16 nut is a critical locking component. Its fastening performance directly determines the stability of the entire machine structure. Loosening can lead to component displacement, decreased operational accuracy, and even safety accidents. XCMG’s original M16 nut (part number 805238374) is specially customized for the XE2000 model, using high-strength materials, precision thread machining, and anti-loosening design to provide durable and reliable locking protection for heavy-duty connection scenarios.

This M16 nut is made of high-strength 35CrMo alloy steel, and is crafted through overall quenching and tempering heat treatment (quenching + low-temperature tempering). Its hardness reaches HRC 28-32, and its tensile strength exceeds 900MPa, far surpassing the performance standards of ordinary carbon steel nuts. When the XE2000 excavator undertakes mining crushing and large-scale earthmoving operations, it can easily withstand the instantaneous impact force and long-term static load transmitted by the bolt, avoiding nut deformation and stripping due to insufficient material strength, fundamentally eliminating the risk of “locking failure.”

In terms of thread precision and locking design, the 805238374 part number nut strictly follows XCMG’s original process standards: the thread is processed by roll forming, the tooth profile precision reaches 6H grade, and the pitch deviation is controlled within ±0.02mm. When it is used with the corresponding M16 bolt of XE2000, the engagement depth reaches more than 75% of the thread height, forming a tight and close locking structure. At the same time, the inner side of the nut is designed with fine anti-slip texture, which can increase the friction between the nut and the bolt thread after tightening. Even in the high-frequency vibration working environment of the excavator, it can effectively resist “vibration loosening”, maintain stable preload, and ensure the long-term stable connection of heavy components such as boom and chassis.

In terms of surface protection, the nut is treated with Dacromet coating, with a coating thickness of 8-12μm, forming a uniform and dense protective film. Compared with traditional galvanizing, Dacromet coating has superior corrosion resistance, with a salt spray test duration of over 1000 hours. It can effectively isolate moisture, salt, and impurities from corrosion in harsh environments such as high dust, rain, fog, and multiple chemical media in mines, preventing the nut from rusting and seizing, and extending its service life by more than 2.5 times that of ordinary nuts, significantly reducing the frequency of maintenance and replacement due to corrosion.

In terms of compatibility, the dimensions (width across flats, thickness) of the M16 nut (part number 805238374) are perfectly matched to the installation positions and dedicated wrenches of the XE2000 excavator, allowing for direct assembly without additional grinding or adjustment. It is suitable for critical applications such as boom pin fixing, chassis shock absorber connection, and hydraulic pump flange tightening. During installation, a single person can quickly complete the locking operation with a standard socket wrench, increasing installation efficiency by 35% compared to non-original nuts and effectively reducing equipment downtime for maintenance.

Whether it’s ensuring the stable operation of heavy-duty booms or safeguarding the reliable connection of chassis components, the XCMG XE2000 M16 nut (part number 805238374) provides excellent locking performance and durability, building a solid “connection defense line” for the safe and efficient operation of the entire machine. This helps engineering teams reduce downtime losses caused by nut failure and lower long-term maintenance costs.

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14 329900300 THICKENEDLARGE WASHER
15 805238374 NUTM16
16 329900298 THICKENED LARGE WASHER
17 801971593 RUBBERSLEEVEHOOP
18 329900301 THICKENEDFLAT WASHER
19 805046508 BOLTM8×20
20 800164343 ETHYLENEPIPE SFG-2-8×2×3600
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22 805238372 NUTM12
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24 318305758 EXHAUSTSTEELPIPE
25 318305759 HEAT-INSULATING FOAM
26 800165561 EXHAUSTHOSE
27 805046533 BOLTM10×50
28 805239302 NUTM10
29 329900515 U-SHAPEDPIPE CLAMP
30 318303244 PAD
31 805238371 NUTM10
32 800163868 HOOP
33 318303242 SILICONE HOSE
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