SLK R170: Clips on back bulkhead: Securing?

[sailorP]

In my R170 (old-style SLK), I have a pair of clips on the back bulkhead of the passenger compartment, behind the seats, above the stowage pocket.
They are secured to the back bulkhead by a Torx head screw or bolt.
I’ll post some photos later tonight, after I reach home (can’t post photos on this computer)
I want to remove the bolt/screw, as part of the process for fixing a perspex wind deflector to the bulkhead…I plan to take out the bolts, remove the clips, then fit the wind deflector to the bulkhead, using the clips like washers to spread the compressive load, securing them with the original bolts (or slightly longer bolts if necessary). If I also fit a pair of Velcro straps at the top of the hoops….voila, cheap wind deflector….beats the official MB R171 version priced at an eye-watering £450.
But…
I’m frightened to remove the bolts, just in case the captive washer behind them proves to be less than captive and slides down somewhere unreachable, rendering the bolt useless.
I thought I would ask here first, in case anyone had tried this, and knows the answer.
So, to the questions:
Are these bolts or self-tapping screws, or something else more exotic?
If bolts, is whatever they secure to behind the bulkhead sufficiently well secured to stay in place when I remove the bolts?
Do the clips come off easily?
And what on earth are the clips for anyway?
I’d appreciate your answers.
No rush necessary. This project is only at the planning phase. Given the ghastly weather, I’m unlikely to have the top down for a couple of months.
Thanks, Phil

 

[television]

Just as I do not think that you will fet a definite answer, I have not found one captive nut that could slide away when working a MB car, I have dismantled extensively the 129 and 320 and never had a problem anywhere.

Is this the part

http://www.detali.ru/cat/oem_mb2.as...GA=722.641&CT=F&cat=66E&SID=64&SGR=015&SGN=01

 

[sailorP]

Clips

Malcolm, I could not get that link to work.
Agreed no-one may know, but someone may have fitted a wind deflector in the same way...one of the German ones on the net looks to be secured with hand scews in place of the clip screws.
When I return from my hols next week, I'll take some brave pills, and unscrew one of the Torx bolts.
Now to work out how to post photos as attachments
Thanks Phil

 

[sailorP]

Reading the Forum Announcements, I see that attachments are banned for a few days, until 30th. By that time I hope to be on vacation, away from computers for at least a week, So if you need the photos to decide what it is and respond (I thought my description was excellent!) we'll have to wait.
Phil

 

[television]

That link works perfectly,,if using firefox scroll down

 

[sailorP]

Link works

Malcolm, thanks
The link worked today, wouldn't work yesterday at work or at home....odd.
Still, that isn't the right drawing.
The one you posted appears to be parts and sections in the boot?
My clips are in the passenger compartment, on the carpet-covered bulkhead immediately behind the seats.
Wish I could post photos, but can't yet.
No rush