5/16"x3/4" Carriage Track Bolts & Nuts
Use the 5/16x3/4 carriage track
bolts to attach the track brackets to the track or can be used to attach
the slotted hanger angle to the track for rear hangs or to hang a
garage door opener. Sold in packs of 10, 20 or 30 pieces and includes the 5/16" flanged nuts.