Smiths tool supports screws

[squalomediterraneo]

Good morning, I am going to mount the Smiths tools after removing the NDs that were not correct for the model of my bike.
I looked into the internet but I could not understand if the four screws that block the elastic ring to the support, originally were screws with the head or the head with an allen

Since I have to buy them I would do the right thing.

Thank you

 

[sfcpiet]

I assume you mean the bracket for the Smiths instruments...

Originally, the steel bracket and the zamak(?) o-ring holder would be rivetted together, the smaller, inner o-ring holder was bolted to the instrument with 2xM6 nuts (Smiths are metric throughout!).  The rivets are of course nonsense, the o-rings perish and need to be replaced now and then.  Normal sloted screws can be used, your choice, whatever looks nice for you.

Replica brackets and o-ring holders are usually CNC machined from alloy these days and usually come with countersunk allen head screws.

piet

 

[squalomediterraneo]

Thanks, that's why I saw various solutions in the photos on the internet.
Perhaps the closest solution could be aluminum screws, which look a little like rivets