Nikki Walker looked like he would add a second break-out try for the Ospreys, sent away after fine work by Andrew Bishop, only for his Scotland team-mate Sean Lamont to drag the wing down.
In between, Glasgow had almost stunned the home side after Sean Lamont intercepted a Jenkins pass on his own 22 and raced upfield, only for Aisea Havili to drag the wing down short of the Warriors line.