Brass Shaft Coupling 4mm to 5mm 2 Pack With Screws and Hex Wrench Flexible Motor Shaft Connector for RC Cars Wheels Tires and Robots Boss Grade Model Accessory for Easy Shaft Joining Built To Last

Brass Shaft Coupler 4-5mm, 2-Pack with Screws & Wrench
✔️ 4mm to 5mm bore, brass body, 9mm OD, 20mm height, screws included

The Brass Shaft Coupler is a sturdy, compact connector used to join motor shafts and hex wheels in RC cars, robots, and model kits. This 2-pack includes two brass shaft couplers with 40 screws and 2 hex wrenches for quick install and replacement.

✅ Material: pure brass for durability and resistance to heat and chemicals
✅ Fits 4-5 mm shaft, suitable for RC motors and wheel hubs
✅ Outer diameter 9 mm, height 20 mm; compact, easy to install
✅ Package includes 2 couplers, 40 screws, and 2 hex wrenches
✅ Corrosion and oil resistance for long service life

Dimension	Metric	Inches
Hole Diameter	4-5 mm	0.16-0.20 in
Outer Diameter	9 mm	0.35 in
Height	20 mm	0.79 in

💡 What is a brass shaft coupling used for in RC cars and robotics? A handy connector to join shafts of different sizes for reliable power transfer.

- Works with mixed shaft diameters for quick setup - Helps connect motors to wheels or other drive elements - Brass construction offers good wear resistance and heat tolerance - Includes screws and hex wrenches for easy installation