Six Pack 3Mm To 3Mm Universal Joints Rotatable U Joint Couplers For RC Cars And Boats Beefy Copper Shaft Connectors For Steering Linkage And Quick Install

Six-Pack 3mm-to-3mm Universal Joint Couplers for RC
✔️ 3mm to 3mm ID, 13mm length, 7mm OD, copper, 6 pcs

These universal joints are compact copper couplers designed to connect driving and driven shafts in RC cars, boats, servo systems, 3D printers, CNC machines, and DIY projects. They securely transfer motion and torque in tight spaces where precision linkage is needed.

✅ Inner Diameter: 3mm to 3mm
✅ Length: 13mm (0.51 inch)
✅ Outer Diameter: 7mm (0.28 inch)
✅ Material: pure copper
✅ Pack contents: 6 joints, 12 M2 screws, 1 M2 wrench

💡 What is a handy use case for a 3mm to 3mm universal joint in RC and DIY projects?

Great for compact drives where shafts must rotate together with minimal backlash.

- handy for RC cars, boats, and 3D printers with 3 mm shafts - copper construction for durability in hobby setups - quick install with M2 hardware and wrench included