Screwing headlining up into fibreglass - where do I get these plugs?

Am I missing something, I would have thought small plugs in the fiberglass would be difficult to find through the lining and backboard holes.
I put mine up using self tappers with washer caps through lining and backboard onto 6mm battens that were glued to the grp. That leaves an air gap for ventilation.
 
LadyInBed said:
Am I missing something, I would have thought small plugs in the fiberglass would be difficult to find through the lining and backboard holes.
I put mine up using self tappers with washer caps through lining and backboard onto 6mm battens that were glued to the grp. That leaves an air gap for ventilation.
Click to expand...

What you are missing is that there are hollow fibreglass stiffeners with holes in with these plugs in. Holes and screws already in place, just that about half the screws don't currently do anything because these widgets are missing from the holes.

Have followed the suggested links on Ebay and not found anything for 6mm holes.

- W
 
ghostlymoron said:
I thought we'd established that they are not Interscrews. If they're just an expanding plug, what's the purpose of the slot and is the central hole threaded?
Click to expand...

I too was thrown by the slot in the head - which I assumed was there for a purpose (seemed a logical thought). Whether they are metal based, or not does not matter to the function they serve - (I have a number of nylon nuts and bolts - which are still nuts and bolts, used to hold two 'things' together, as a stainless nut and bolt is used). There is no indication that I have seen that the devices are not threaded, but I might have missed that.

In my opinion too many nit pickers - the OP cannot find exactly what he has, people are trying to offer options and ideas. If we had found exactly what he wanted the thread would have died - the fact its still here (and no-one has come up with an exact answer) suggests Ideas might still be needed.

For the know alls - precisely what is the role of the slot in the head and the hole in the centre of the head? As a, fancy, rawlplug replacement - how do you stop the plug rotating when the 'screw'? is inserted and tightened - if you replace with a square version I can see how it works - but not with the versions in the photo. If you can access both sides, so hold the head - then an inter screw would work.

Don't shoot the messengers.

Jonathan
 
Square pegs would be excellent, but the smallest is for an 8mm hole, nothing as small as 6mm

Am currently contemplating cutting normal rawlplugs in half and sikaflexing them in.

- W
 
webcraft said:
Square pegs would be excellent, but the smallest is for an 8mm hole, nothing as small as 6mm

Am currently contemplating cutting normal rawlplugs in half and sikaflexing them in.

- W
Click to expand...

You could, or you could get the smallest square one, trim the corners then re-drill the holes as needed.
 
Neeves said:
For the know alls - precisely what is the role of the slot in the head and the hole in the centre of the head? As a, fancy, rawlplug replacement - how do you stop the plug rotating when the 'screw'? is inserted and tightened - if you replace with a square version I can see how it works - but not with the versions in the photo. If you can access both sides, so hold the head - then an inter screw would work.

Don't shoot the messengers.

Jonathan
Click to expand...

Blimey Jonathan, are rawlplugs the new anchors :)

The slot serves no purpose. Don't ask me why it's there, it just is. These are common as muck automotive panel fixings, i've seen millions of various ones from when i was in the automotive industry. They don't turn because they are tight in the hole. You can't access both sides, they are in a stringer, same as if they are in a car door.
 
PaulRainbow said:
Blimey Jonathan, are rawlplugs the new anchors :)

The slot serves no purpose. Don't ask me why it's there, it just is. These are common as muck automotive panel fixings, i've seen millions of various ones from when i was in the automotive industry. They don't turn because they are tight in the hole. You can't access both sides, they are in a stringer, same as if they are in a car door.
Click to expand...

The slot is there because the plug is split down the middle most of the way of the bottom. The flange at the top that stops the plug disappearing down the hole is of necessity also split, so it looks as though there is a slot. It isn't really a slot.

The automotive ones seem to be square for 8mm holes - nothing as small as 6mm. 6mm square ones would probably work just fine.

- W
 
webcraft said:
The slot is there because the plug is split down the middle most of the way of the bottom. The flange at the top that stops the plug disappearing down the hole is of necessity also split, so it looks as though there is a slot. It isn't really a slot.

The automotive ones seem to be square for 8mm holes - nothing as small as 6mm. 6mm square ones would probably work just fine.

- W
Click to expand...

In this kit there are some fir tree panel fixing for 6mm dia holes which are 14mm long.



You should be able for find a supplier of the one you need.

The modon type don't use screws but just a push in button to lock the item in place.

There are also simple single part fir tree buttons for 6mm hole

http://www.crestindustrial.com/u-nuts---spring-nuts.html

https://www.vehicleclips.co.uk/5-6mm-fir-tree-panel-clips-10mm-head-black.html

fcp-0217-d.jpg
 
Just don't do like a previous owner of my boat - replace the screws with longer ones to get better grip!
All appeared well until the first rain shower after I took down the headlining...the screws had kept the hole more or less sealed, but said holes reached through to fresh air...
 
webcraft said:
The slot is there because the plug is split down the middle most of the way of the bottom. The flange at the top that stops the plug disappearing down the hole is of necessity also split, so it looks as though there is a slot. It isn't really a slot.

The automotive ones seem to be square for 8mm holes - nothing as small as 6mm. 6mm square ones would probably work just fine.

- W
Click to expand...

As with many original fixings an exact replacement may not be possible. My votes would go for either the rubber nut which do give a secure removable fixing or one of the myriad automotive plastic panel fittings which are easily obtained from ebay and cheap enough to use them to replace all the fixings
 
I think I've twigged it now after seeing the mystery item on my laptop instead of a titchy phone screen. I can now see the slot extending down the fixing is so that it can expand when a screw is inserted. I was a bit thrown by the constant references to 'interscrews' which require access to both sides of what you're fixing to.
A cheap solution would be to superglue a cut down Plasplug into the ceiling. This is what I've got but its the devils own job to locate them through the roofing panel (but I've succeeded so far).
 
You must log in or register to reply here.

Other threads that may be of interest

S
Marine Ply for Bulkhead Glasgow
Replies
13
Views
554
sundanceoflorn
S

Share this page

Top