Raymarine ST50/ST60 Wind Mast Mount: Thread Size?

[nigelmercier]

Anyone know if the Raymarine ST50/ST60 Wind Mast Mount has a standard thread where it connects to the arm?

I'm playing at home with a Raymarine ST60 Wind arm, and ideally I need the proper mast mount, like this (or the newer type):

...

 

[nigelmercier]

Anyone know if the Raymarine ST50/ST60 Wind Mast Mount has a standard thread where it connects to the arm?

OK, I'll rephrase this.

Anyone know the thread size, or has one handy and can measure?

 

[truscott]

I have one sitting in its box but the block looks a little different (mine is oval). It will still fit the wand as far as I know. How do I measure the thread size though?

Edit; Thread Diameter is 22mm.

Thread Pitch is 3mm.

Cheers

PT

 

[nigelmercier]

... Thread Diameter is 22mm. Thread Pitch is 3mm.

Fantastic, thank you. It's virtually impossible to measure the internal thread.

I wonder if I can make this on my lathe? New thread started http://www.ybw.com/forums/showthread.php?417249