C19 Stretch and re-build - Launched!!

[TomTom]

Put any nylon fitting on the stern side here.

8072A5FD-087B-48C2-AD7A-5441097BD7A4.jpeg

I was hoping that screwing the hatches tight against the gasket would be enough without a drain. They are “semi-permanent”.
I can drain each individual locker into the wet bilge. Each one has a separate pipe that goes to the bilge and has a plug.

Has anyone had any luck bedding self tapping screws in epoxy and removing/ retightening them?

Otherwise I am thinking of bedding something like this....

I think they are called furniture sleeves.

[Browndog]

In the US they are called T-nuts. A few guys on the forum have used them on their builds.

[fallguy1000]

You can use adjesive head nuts as well or make your own with a drilled plate and welding. I also trapped nuts inside epoxy by waxing the bolt heavily, then drawing it in and then applying thickened epoxy with a tongue depresser to all 6 edges and a circle of epoxy around.

I think your lockers will work better with drains where I drew. Rain is insidious and will find a way around your seals of the pressure gets high. By creating a path to the bilge; you will probably only get a few drips in there.

The bigger problem is mildew attacks things so bad and dampness once inside will not leave.

Nylon hose barb nuts work well. You can get variousbthreads on them and a piece of clear tube to route water away and keep the box pretty dry.

[joe2700]

I was hoping that screwing the hatches tight against the gasket would be enough without a drain. They are “semi-permanent”.
I can drain each individual locker into the wet bilge. Each one has a separate pipe that goes to the bilge and has a plug.

Has anyone had any luck bedding self tapping screws in epoxy and removing/ retightening them?

Otherwise I am thinking of bedding something like this....

I think they are called furniture sleeves.

Not self tapping screws. I've had luck embedding a nut in epoxy, using a well waxed machine screw that can be removed once cured. I've also recently had luck epoxying g10 in place, then drilling and tapping the g10.

[TomTom]

Not self tapping screws. I've had luck embedding a nut in epoxy, using a well waxed machine screw that can be removed once cured. I've also recently had luck epoxying g10 in place, then drilling and tapping the g10.

What is G10?

[joe2700]

What is G10?

Epoxy/fiberglass laminate that is cured under high pressure so it is very dense. Can be purchased in sheets, rods, tubes. The more modern designation is often FR-4 but in boatbuilding I usually still see it referred to as G-10.

https://www.jamestowndistributors.com/u ... o?pid=8758

https://www.mcmaster.com/garolite

It's great for backing plates or other high load applications and it's also machinable so it takes threads. I just did a test for my hatches recently and the impact driver stripped the 8-32 machine screw before the hole I drilled and tapped was damaged.

[TomTom]

Wow! Sounds interesting! I will have a look!

[TomTom]

[TomTom]

[joe2700]

A few more images of my extension...



[imgur2] https://i.imgur.com/uVjwiQr.jpg[/imgur2]

[imgur2] https://i.imgur.com/vWSAsFF.jpg[/imgur2]

[imgur2] https://i.imgur.com/zbsFc4z.jpg[/imgur2]

For imgur links you just put the random letters inside the brackets instead of the entire link. The part between "imgur.com/" and ".jpg".