I think you have to create cloth "leaders". Basically this is just a strong fabric (can even be pillow ticking or canvas) that goes around the pole. You attach the quilt to the leaders. With metal poles, I'm thinking you will need to create a sleeve to slide the leaders onto the poles. Basically you could take a rectangle of fabric, fold it in half, sew a seam so that the resulting sleeve fits over the pole, and either leave the ends free or sew them together for a strong leader. You want this leader to be long enough to make it easy to pin a quilt to it; I'm thinking maybe 6 to 8 inches.