Where can you find these mega screws in a more modern version?

[Ironside]

Hello,

We are renovating a staircase from the 70s and want to replace all the screws with something more modern, perhaps even encapsulate them. The ones currently there look like this:



It might be possible to make the holes larger.

I've looked at Hornbach but they didn't seem to have anything that would fit.

Best regards,

 

[Mugmaz]

8x90 is found almost everywhere.
When you measure a countersunk screw, the entire screw is measured.

 

[RalleB]

Then the question is what modern screws look like

Ok, you have old slot screws but I don't know if torx, hex, star etc. look that much sexier.

 

[Thomas_Blekinge]

For optical reasons, you should not replace the screws. Visible screw heads should have slots. Any fine carpenter would turn in their grave if you were to use cross or torx.
The most reasonable material is nickel-plated iron. Nickel-plated brass also works but can be a little too weak.
Sure, it's hard to get hold of.
Don't throw away the screws, there are always people who like such things.

 

[Snickarkirre]

Are the screws for the ladder through the vangstyckena? If you want to mount them hidden, you can measure the head of them and then go up a few mm in dimension and drill a countersunk hole about a cm or so, and then insert a dowel into the hole with a bit of wood glue after you have driven in the screws.