Screwing into outside of Motorhome

I have used a matchstick before but its not foolproof, You could also try a rawl plug.

peedee

 

Fill the hole with araldite and redial.

As CY says use Araldite or Gorilla Glue  BUT don't expect to be able to remove the item without causing greater damage !!

You could try moving the light slightly up or down or even sideways and make new holes as close to the old ones as possible. Fill old holes with sealant. At least that way the lights can easily be removed again.

JK

The user and all related content has been Deleted User

The user and all related content has been Deleted User

Try these or similar. Can be used creatively in many settings, not just that intended, wherever a new thread is required. Or even those small anchor bolts used in cavity wall settings.

 

https://www.ebay.co.uk/itm/363075287276?var=0&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338268676&toolid=10044&customid=EAIaIQobChMIiIT7lKPa9wIVh7PtCh2wXAKoEAQYAiABEgIBXvD_BwE

Or these

https://uk.rs-online.com/web/p/wall-plugs/0279098?cm_mmc=UK-PLA-DS3A-_-google-_-CSS_UK_EN_Fasteners_%26_Fixings_Whoop-_-Wall+Plugs_Whoop-_-279098&matchtype=&pla-320665221354&gclid=EAIaIQobChMImezH4KXa9wIVo2LmCh1JFwV5EAQYAyABEgITU_D_BwE&gclsrc=aw.ds

Those rubber expanding grommets are a real pain. I must have lost three or four down the inside of my caravan's rear moulding when refitting a light cluster. Why they don't just bond a nut permanently is beyond me.

Thanks for all the helpful suggestions. On further inspection found screw hole only into thin moulding. Managed to get wooden block behind to screw into and tighten against back of moulding. Seems secure.