GTV wiper arm retaining nut

[northtip5225]

I am restroing a 67 GTV. I inadvertently lost the large, flat retaining nut for one of the wiper arms-ie, the nut that holds the wiper arm on the wiper motor spindle, not the smaller cap nut. Does anyone have any of these or know where I might find one? Thanks.

[alfaparticle]

I think that I have what you want. The thread is M15 and the hex is 22mm.

[Damo105]

I've got a couple of spares if you need them. They're off a 2lt Berlina, but I'm sure the nut would be standard across all 105s