Quoted from Yelobird:As there is already a steel ball being launched around the playfield I suspect no damage will be incurred when it does eventually appear. I am betting I'm not the only one in this hobby that lost a screw, washer, or even tool while doing service only to have it mysteriously appear during a random game lol. Replace with any nylon nut and Play that awesome game.
That random game is always a great game though. Do you stop the game or finish the ball and risk letting it scratch something????