Home > Shop > Hardware > General Hardware > Box Rail & Round Rail > ONWARD BARN DOOR BOX RAIL DUAL AXIS HANGER w/BALL BEARING & SHORT THREAD BOLT ONWARD BARN DOOR BOX RAIL DUAL AXIS HANGER w/BALL BEARING & SHORT THREAD BOLT Item #: 33720620 Mfr #: 24651384XV $16.90 each Checking Inventory Add to Cart Overview: Ball bearing wheels Designed for box rail sliding doors