Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	High-Strength Aluminum Alloy
Color	Silver
Applicable Models	RC Cars, Boats, and Micro Drones
Shaft Diameter Compatibility	2mm to 5mm
Total Length	25mm
Outer Diameter	8mm
Weight	4.5 grams
Package Contents	1 x Universal Joint Coupling, 2 x Set Screws
Surface Treatment	Anodized for Corrosion Resistance
Application Type	Steering Linkage and Motor Connector

6 reviews

Anonymous

Mar 25, 2026

Rating: 5/5

Excellent upgrade part

Replaced the flimsy plastic connector on my vintage model car kit. This metal joint adds a nice weight and realism to the steering mechanism. Very satisfied with the purchase.

Anonymous

Mar 24, 2026

Rating: 5/5

Smooth operation

Used this to repair a broken joint on my custom drone build. The universal movement is smooth without any binding. Highly recommend for DIY projects requiring precise steering.

Anonymous

Mar 23, 2026

Rating: 5/5

Durable and reliable

I've put this through some rough testing on my off-road buggy. No signs of wear or loosening after several runs. Great value for a metal component in this size category.

Anonymous

Mar 21, 2026

Rating: 4/5

Good quality, slightly tight fit

Great little part for my RC boat motor shaft. It was a bit tight on the 4mm shaft initially, but after a little careful filing, it slipped on perfectly. Holds up well under water.

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect fit for my micro crawler

This coupling is exactly what I needed for my 1/24 scale crawler. The metal construction feels very durable compared to the plastic stock part. Installation was straightforward with the included screws.

Anonymous

Mar 01, 2026

Rating: 3/5

Decent but screws are small

The coupling itself is solid, but the included set screws are extremely tiny and easy to strip if you aren't careful. I ended up using my own hardware. Otherwise, it works as advertised.

5 FAQ

Q: Does the package include hex keys for installation?

A: No, the package includes the coupling and set screws only. You will need a small hex key (typically 1.5mm or 2mm) which is not included.

Q: Is this suitable for underwater use in an RC boat?

A: Yes, the aluminum alloy is anodized for corrosion resistance, making it suitable for freshwater RC boat applications. We recommend rinsing with fresh water after saltwater use.

Q: Can this handle high-speed motors?

A: It is designed for micro and small-scale models. While durable, we recommend it for standard hobby-grade speeds rather than high-performance competitive racing setups.

Q: What is the maximum angle this joint can articulate?

A: The universal joint design allows for approximately 30 to 45 degrees of articulation, providing flexible steering for most DIY model configurations.

Q: Will this fit a 3mm motor shaft?

A: Yes, this coupling is designed to accommodate shaft diameters ranging from 2mm to 5mm, so a 3mm shaft will fit securely with the set screws.

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