Screw back disk question

[AUSGANG]

Hey there, does this one look authentic?

[Douglas 5]

Very short 'fins' - can't say ? Looks like aluminum - ??
Any way finding out if it has metric threading ?

Douglas

[AUSGANG]

Yeah, the repros are pretty convincing...Thanks for your input!

[Douglas 5]

Well ... if you have another original EK1 with disk you can try ... probably have . ... if it has the same size opening .
Imperial treading will fit very sloppy at first and will tighten up quickly as the threading starts to bind .... use any nut you can find at your place .
Will eliminate one type of post war substitute only - just a start .

Douglas

[streptile]

It looks promising to me.

Different makers used different screw thread sizes, so it will not fit just any EK1. If you're buying it as a replacement for a lost disc, prepare to be potentially disappointed.

[Gew44]

It looks promising to me.

Different makers used different screw thread sizes, so it will not fit just any EK1. If you're buying it as a replacement for a lost disc, prepare to be potentially disappointed.

I agree 100%

[AUSGANG]

Thanks! I'll chance it...