The YIKONG YK4061 RC Car Parts Longitudinal Shaft Female Threaded Cup Screw Shaft M4 (Part No. 26102) is an important fastening component in the drivetrain. It is primarily used to secure the longitudinal driveshaft and related drivetrain components, ensuring smooth and reliable power transmission. Manufactured from high-strength metal, it offers excellent durability and wear resistance. Proper installation and regular inspection help prevent loose fasteners, driveshaft disengagement, and drivetrain wear, keeping your YIKONG YK4061 RC Car operating at peak performance.

Why Is Proper Use of the Longitudinal Shaft Female Threaded Cup Screw Shaft M4 Important?
The Longitudinal Shaft Female Threaded Cup Screw Shaft M4 secures the longitudinal driveshaft in place. If it is installed incorrectly, becomes loose, or has damaged threads, it can negatively affect the entire drivetrain.
Improper use may lead to:
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Loose driveshaft
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Unstable power transmission
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Accelerated universal joint wear
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Screw loosening or loss
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Drivetrain noise
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Reduced off-road performance and handling of your YIKONG YK4061 RC Car
For this reason, the fasteners should be inspected regularly.

What Should You Pay Attention to When Using the YIKONG YK4061 RC Car Longitudinal Shaft Female Threaded Cup Screw Shaft M4?
Correct installation, regular inspection, and proper tightening are essential for maximizing the service life of the Longitudinal Shaft Female Threaded Cup Screw Shaft M4.
1. Install It in the Correct Position
During installation, make sure:
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The correct screw size is used.
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The mounting position is accurate.
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It is fully compatible with the longitudinal driveshaft.
Incorrect installation may prevent the driveshaft from being securely fastened, affecting the power transmission of your YIKONG YK4061 RC Car.
2. Do Not Overtighten
Apply even tightening force during installation.
Overtightening may result in:
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Damaged threads
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Screw deformation
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Damage to the mounting hole
Use the correct size hex driver for installation.
3. Use Thread-Locking Compound
Since the YIKONG YK4061 RC Car is frequently subjected to vibration during off-road driving, applying a small amount of medium-strength thread-locking compound is recommended to help prevent the screw from loosening.
4. Inspect It Regularly
After every off-road run or aggressive driving session, inspect the screw for:
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Looseness
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Wear
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Deformation
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Stripped threads
Replace it immediately if any damage is found.
5. Keep the Mounting Area Clean
Mud, sand, and small stones can accumulate around the mounting area and affect proper tightening.
Clean the drivetrain after each run to keep the mounting points on your YIKONG YK4061 RC Car free from debris.

Daily Maintenance Tips
Good maintenance habits will significantly extend the service life of both the Longitudinal Shaft Female Threaded Cup Screw Shaft M4 and the entire drivetrain.
Recommended maintenance:
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Regularly inspect the screw for proper tightness.
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Clean the drivetrain after every off-road drive.
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Check the threads for wear or damage.
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Reapply thread-locking compound when necessary.
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Replace worn or damaged screws promptly.
Routine maintenance helps ensure smooth and reliable drivetrain performance for your YIKONG YK4061 RC Car.

FAQ
Q1: Which models is the Longitudinal Shaft Female Threaded Cup Screw Shaft M4 compatible with?
This part is compatible with the YIKONG YK4061 RC Car.
Q2: Why does the screw keep coming loose?
Continuous vibration during off-road driving may gradually loosen the screw. Applying a small amount of medium-strength thread-locking compound and checking the fastener regularly can help prevent this problem.
Q3: Can I continue using the screw if the threads are stripped?
No. Stripped threads reduce fastening strength and may allow the driveshaft to loosen or detach. Replace the Longitudinal Shaft Female Threaded Cup Screw Shaft M4 immediately if thread damage is found.
Q4: How often should I inspect the fastening screw?
Under normal driving conditions, inspect it during routine maintenance. If you frequently drive your YIKONG YK4061 RC Car off-road, rock crawl, or drive at high speeds, inspect it after every run.

Product Specifications
| Item | Specification |
|---|---|
| Product Name | Longitudinal Shaft Female Threaded Cup Screw Shaft M4 |
| Part Number | 26102 |
| Compatible Model | YIKONG YK4061 RC Car |
| Part Type | RC Car Parts |
| Material | Metal |
| Package Quantity | 6 pcs |
Conclusion
The YIKONG YK4061 RC Car Longitudinal Shaft Female Threaded Cup Screw Shaft M4 (Part No. 26102) is a small but essential drivetrain fastener that plays a critical role in securing the longitudinal driveshaft and maintaining reliable power transmission. By installing it correctly, avoiding overtightening, inspecting it regularly, keeping the mounting area clean, and replacing worn fasteners promptly, you can significantly extend the service life of both the Longitudinal Shaft Female Threaded Cup Screw Shaft M4 and the entire drivetrain, ensuring your YIKONG YK4061 RC Car continues to deliver dependable performance on every off-road adventure.
