What is this bolt?

Upon removing my rear damper (nearside) I found this bolt hanging loosely in the upper damper mount area.

I can’t see what it is threaded into - I am expecting an engine mount…

Can anyone confirm what it is and the torque value please?

TIA
bolt.jpg

Roll hoop back stay. The bolt head is down inside the back stay rear mounting.

Thanks. An easy fix then.

R