No fixings

[Supernube]

Hello all. I'm new here and need some advice please.
I am installing a breakfast bar counter.. made from scaffold boards.. varnished etc.
I can get to one end only to fix down with actual fixings.. the other end I cannot get to the underside and don't really want to drill and plug it if possible.
Can I use a grab / bonding adhesive product of some kind to do the job of fixings?
It's there a grab adhesive anybody can recommend please?
Or am I asking to much of it ?
Thanks
Daniel

 

[Wayners]

CTI
Any polymer grab will do it.

 

[robinbanks]

Show a picture

 

[Supernube]

 

[Supernube]

There will be an added support on the wall.. top left of pic... and i can get access to the underside around the corner out of sight in the pic to let

 

[foxhole]

Very unclear what you are doing and what the problem is?