If it is just in drywall ( that’s plasterboard right?!) I would be wary of putting any weight on it at all, likely just to pull through, I would be tempted to use some Gripit fixings, they are rated for 93kg per fixing for the largest ones, so could probably get away with smaller than that, I have hung heavy TVs off them with no issues.
If it is just in drywall ( that’s plasterboard right?!) I would be wary of putting any weight on it at all, likely just to pull through, I would be tempted to use some Gripit fixings, they are rated for 93kg per fixing for the largest ones, so could probably get away with smaller than that, I have hung heavy TVs off them with no issues.