Slotted Truss Head diam.425-.448 hgt.083-.104 ribneck diam.275-.290 Track Bolt Zinc

Designed specifically for use in installation of garage doors. The track bolt is used to (a) attach track brackets to the vertical sections of track; (b) attach the flag bracket to the top of the vertical tracks; (c) fasten the horizontal angle bracket to the horizontal track. The round head has a low profile to not interfere with the rollers as they pass along the track. The preferred mating part is a serrated flange nut