Rusty window hinge

[Jupiter01]

We rarely use this window. When I opened recently, I noticed this rust, broken screw head. Need to understand why this is rusted and how I fix this. I thought it may just need a new screw but the bit in the corner isnt pulling the window in and hence, there’s always a gap in the bottom right corner.

The window on the other side is absolutely fine.

Can you please advise.

 

[crank39]

Pair of hinges and use stainless steel screws

 

[Jupiter01]

Pair of hinges and use stainless steel screws

Do you know why it’s rusted? The other side is completely dry.

 

[crank39]

The hinges themselves haven't rusted because they're stainless but clearly the screws weren't, maybe just plated steel and the plating has failed

 

[Jupiter01]

The hinges themselves haven't rusted because they're stainless but clearly the screws weren't, maybe just plated steel and the plating has failed

Ah yes. I see what you mean.
Is it normal for water to collect in this area of the window or does this indicate a fault?

Where can I get a replacement hinge and are they a standard size?

Thanks for your help.

 

[crank39]

Looks like a 400mm standard friction hinge

 

[Jupiter01]

Looks like a 400mm standard friction hinge

I can get 410 from screwfix. Will they be okay?

 

[crank39]

Yes but measure yours first as my 400mm is an educated guess, the stack height is also a measurement you ideally need, 13mm or 17mm but 4mm spacers are available

 

[crank39]

When I'm out next changing some friction hinges I'm going to take some photos and a do a descriptive step by step in how to position them freehand without a jig

 

[Jupiter01]

When I'm out next changing some friction hinges I'm going to take some photos and a do a descriptive step by step in how to position them freehand without a jig

Thanks. I've seen a few YouTube videos and will give it a go. Wish it was ground floor as opposed to the first floor. Will move my car, just in case!
I was going to get the hinges from Screwfix, unless you advise a different type.