Rear light reflector screws . .GS100/93 model

[newbuild100]

Guys

Looking around my bike, it looks like just about all fasteners have been replaced with stainless steel. Ive found two that arent though . . .!
The two screws that hold the rear light reflector in place are 55mm long, with a pan head. I think they are self tappers, but im unsure as they have a slightly odd thread on them.
Does anyone know what size they are exactly, or indeed where I can purchase them from in S/S ??

thanks all

 

[Colt]

Try Chris shaw at shaw stainless.

 

[BillN]

you should be able to get the size info of the original from your BMW dealer who will have it on his exploded parts list fiche - I always found the parts guy at my local dealer helpful in this respect.

You can then identify the stainless size that you need

 

[newbuild100]

Thanks.
I will try chris.

ps . .microfische just says
"screw"