Prime-Line 3/4 in. D X 1/4 in. L White Plastic/Steel Tub Enclosure Roller 4 pk

This is a 3/4 in. tub and shower door nylon ball bearing roller with an oval edged wheel. It has a threaded hex head hub that uses an 8-32 x 3/8 in. long Philips binder head machine screw to fasten it to the door bracket. Used on a variety of different tub and shower top roller systems. Use Prime-Line part M 6000 for 3/4 in. roller.