Screws for Skywatcher Startravel 102

[Sajeel]

I have a Skywatcher Startravel 102 (older version) and am after a few screws:

 

1) Red Dot Finder Screw (This seems to be smaller than screw used to hold the 90 degree diagonal mirror but larger than the scews used to hold in the barlow lens or eye piece)

2) Screw used to hold in the 90 degree diagonal mirror 

3) Lens dust cap cover (The diameter seems to be 115mm)

 

I have attached some pictures to give you an idea of the scew/bolts I am after.

 

Any idea what sizes these are and where I can source them?

 

Thanks

[Alkaid]

I’ll see if I can measure the screws on mine for you.

[Sajeel]

Thanks for that. Appreciate your response.

[davyludo]

Just checked mine, think they might be M4.