sliding screen door rollers

Please help. I recently purchased four screen door rollers. Your item number 84-050. I was excited to be able to final find what I was hoping were replacement rollers for my screen slider. My issue is the thickness of these rollers. They are exactly the same as my old ones except thickness. My door rollers are 1/4 inch thick. The 84-050 rollers are closer to 1/2 inch. I have attached pictures. Do you have what I need..