Rotatable Universal Steering Shaft 2mm To 3mm Inner Diameter U Joint Coupling Kit With 2 Joints And M4 Screws For Model Robots Hobbyist Drones And RC Cars

Pack of 2 Rotatable U Joint Shafts with M4 Screws ✔️ 2 joints, 8 screws, 1 spanner included for easy install

These rotatable universal joints are built to transfer torque between small-diameter shafts in RC cars, drones, and hobby robots. They’re ideal for linking motors to wheels, hex hubs, or other drive components where shaft alignment shifts during operation.

Dimension	Value
Outer diameter	9 mm (0.3 in)
Length	23 mm (0.9 in)
Inner diameter	2-3 mm (0.07-0.11 in)
Thread size	M4
Material	Nickel-coated iron with corrosion-resistant plating

✅ Outer diameter: 9 mm (0.3 in)
✅ Length: 23 mm (0.9 in)
✅ Inner diameter: 2-3 mm (0.07-0.11 in)
✅ Thread size: M4
✅ Material: Nickel-coated iron with corrosion-resistant plating
✅ Includes: 2 universal joints, 8 screws, 1 spanner

💡 What is a universal joint shaft used for in model robotics and RC projects?

This handy joint helps transfer torque between shafts that aren’t perfectly aligned, keeping systems moving smoothly.

- handy for torque transfer between misaligned shafts in RC cars, drones, and robots - improves alignment stability under load - compatible with M4 screws and 2-3 mm shafts - nickel-plated iron construction resists corrosion and wear