GSA Screen on GS - Help on bolt lengths pls

As per title, have GSA screen and brace bar and trying to fit on 05 R1200GS.

Checked realoem and ordered the bits that differed plus a few extra grommets (bound to lose one in the install was my reasoning)

Anyway on first trial fitting, it is plain that the bolts (no 2) in the picture are not long enough!:
http://www.rainbowbmw.com/BMWETK/Products/0397_4601817.php

I probably have the original one that are listed as superceded but there are no details re length-mine have 40mm of exposed thread, anyone know of the later ones were longer? I'll have to order a pair but want to make certain that I remove any chance of personal fuckwittery influencing the required outcome.

Welcome your comments and observations as always

TIA

I changed the screen to a GSA one a few years ago on a GS I then owned, IIRC I bought the GSA screen used, and used all the bolts from the GS screen to attach it, this was a 2010 bike however, yours might be different.
HTH

Thanks for the reply Pablo, I think Bm rationalised the bolts to a single design that copes with either, I have ordered these so fingers crossed!
Having to wait for them to come over from Germany.