What is this?
These adapters and couplers are commonly used in remote control-vehicles and model-vehicles. Can be used to connect wheels or other rotating devices to motors, other drive systems. They provide a convenient method of transmitting rotational forces and carrying loads. Can be used in homemade machines and DIY projects, can be used to connect rotating parts such as drums, rotors, fans, etc. for experiments and research.

What will I get?
Combiner Length: 20mm/0.79-inch
Internal Thread: M4*0.7
Combiner Size: 12x10x5.7mm/0.47x0.2x0.39x0.22-inch (Hexagonal Width*Outer Dia.*Hole Dia.)
Latch Size: 9.7x2mm/0.38x0.08-inch (L*Dia.)
Nut Length: 20mm/0.79-inch
Nut Size: 20x8x5x8mm/0.79x0.31x0.2x0.31-inch (L*W*Dia.*T)
Material: Aluminum
In the package of: 1 Set Wheel Hex Drive Hubs Adapter Combiner Coupler (Include 4pcs Combiner + 4pcs Latch + 4pcs Nut)

Are there any advantages of the product?
Made of aluminum alloy, low density and light weight. Has good strength, corrosion resistance and thermal conductivity. They are not easily deformed or broken during use, ensuring stable connection and transmission of force. This gives aluminum adapters and couplings better durability in humid or humid environments and extends the service life of the product.

How to use it?
Insert the adapter into the hex hole of the wheel hub, making sure it fits snugly and is aligned. Using a tool such as a wrench or screwdriver, turn the adapter counterclockwise until it is firmly seated on the hub.

What should I notice?
When selecting adapters and couplers, make sure they match your actual needs. Be careful not to over-rotate to avoid damaging the adapter or hub.