Locking mechanism in threshold in old patio door

[KJD]

trying to repair a damaged threshold part in our old patio door from -69. Previously teak, had to be removed 🙀due to poor condition, and now replacing with pine with facade paint. (Better suggestions welcome).
My problem now is when I try to install newly ordered threshold plate, a hole is needed here for the locking mechanism that went down into the old threshold. At the top, there is a steel fitting, so I need to find one like that/make it, but what do you do downward to stop moisture from the plate? Could you consider some type of plastic plug? Anyone who might have an idea?

 

[KJD]

Had a picture with it, but it didn't come along. Will try again when I'm at a computer.

 

[KJD]

Had a picture included, but it didn't come through. Will try again when I'm at a computer

 

[KJD]

Attaching image of the locking pin and fitting at the top of the door. Does anyone know what this is called and where one can get something that might work?

 

[sinuslinus]

https://www.laskompaniet.se/product/slutbleck-62r

Strike plate

The part in the door leaf is called kantregel.

 

[KJD]

The names here are what I can search for, however, this looks more like it's for a lock cylinder (square) while my lock part is a round pin here. Considering that I have placed a plate over the threshold now, I don't want to drill into it (red marking in the image) in case moisture seeps in there. I'm thinking about installing a locking mechanism on the inside of the door into the wooden threshold, which will be visible - but I can't think of anything better. It would have been interesting to see how it's done on new door sets, but I haven't been able to see any.

 

[sinuslinus]

The threshold plate is on the outside of the threshold, so it's wooden where the slutblecket is located.

Then it works well with the slutblecket for your edge rule. It's only the outer edge that needs to have the right measurements. Inward doesn't matter because then the door hits the stop in the frame.

 

[KJD]

I found some products when I tried searching with "slutbleck," my following issue was that I didn't want to make holes in the sheet metal, as moisture could seep in there, and my repaired door sill is no longer hardwood.

I'll look them up on the computer later, but they seemed to have a plastic part that might have been sealed.

The threshold plate is on the outside of the threshold, so it’s wood where the slutbleck is placed.

Also, it works well with the slutbleck for your edge rule. It's only the outer edge that needs to have the right dimensions. Inward doesn't matter as the door then hits the stop in the frame.