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Yes I know this is the correct way. I wanted to avoid a trip to the store because actually stainless screws with allen head are harder to find here. I have to go to a nautical hardware store and then maybe go there and find out it's in inches.

Anyway it's not a 1/4 20 photographic but it looks like an M6

 

 

Quite possibly an M6 or M8?, you could try in any hardware store then knowing the right thread order the correct screws.  If you have a Nauticam housing it will likely have a screw about that size you could try out, mine seems to have M6, M8 and M10 screws.  If you find one that fits you can measure the OD with calipers and consult a thread chart to work out what is what.

The screws required are- 5/16 -18 x 1 1/4 socket head cap screws,stainless steel

These are the same screws used on all of our housings.

  • 6 months later...

 

Hi, Aquatica:

Time has come for you (and for the USA) to switch to metric from the medieval inches/pounds. Everybody else in the world uses metric, in case you hadn't noticed.

Cheers!

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