Graup Flex Coupler - Need set screw size

[Drobie]

Does anyone know the size of the set screws on a Graupner Flex coupler?

I have two of the couplers, neither of them have any set screws and I'm not sure who I purchased them from.

Hobby Lobby couldn't (wouldn't?) help. They told me to try my local hardware store. Given that they're probably metric, I have my doubts about being able to find them in my area.

[walter geens]

Hi Doug,
The size of the setscrews is indeed metric as you suspected. It's size is M4 ( 4mm threads). In the solid couplers Graupner uses M3 Allan screws.
Hope this helps,
Ciao Walter

[Drobie]

Originally posted by walter geens
The size of the setscrews is M4 ( 4mm threads).

Thanks, Walter. You wouldn't happen to know the length as well would you? (I probably should have included that request in my original question.)

[Steven Vaccaro]

Bring the coupler to the LHS and give it a try. Most of the hardware stores in the Local Boston area more carry Metric!
StevenV

[walter geens]

OK Doug,
i took out one of the screws and meassured it. It is also 4mm in length. I don't think it will be a big problem to find them.
Ciao Walter