How tall is the 8mm flange?

the flange base is 3mm high and the total height is 13mm. diameter of the flange is 32mm and the diameter of the post is 16mm.

Are their any with thread for the 4 little holes?

No, they are not threaded. I actually drilled out the set ecrew holes and tapped them for 1/4" set screws. Much more secure. Ypu coule tap the 4 holes for scres if you want to.

What is the diameter or radius of the four mounting holes for the 6mm part?

The 4 holes are each about 3/32” diameter, just under 1/8”.

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🔧 Connect with Confidence!

VALUE PACK - Comes with 4 couplings, a wrench, and screws—everything you need to get started!
EASY INSTALLATION - Includes a mini hex wrench and fastening screws for hassle-free setup and replacement.
UNMATCHED DURABILITY - Crafted from premium 45# steel, this coupling connector outlasts copper and aluminum alloys.
COMPACT LIGHTWEIGHT - Weighing only 40g, it’s the ideal accessory for your DIY projects without adding bulk.
PERFECT FIT FOR RC MODELS - Designed specifically for model shaft connections, ensuring seamless integration with your RC motors.

The 4Pcs 6mm Flange Coupling Connector is a robust accessory designed for DIY RC model motors. Made from durable 45# steel, it features a 6mm inner diameter and includes essential installation tools, making it the perfect choice for hobbyists seeking reliability and ease of use.

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