3 Inch Standard No. 3 Hinge for Rollers with 7/16 Inch Stem Diameter for Garage Doors
Includes one hinge and four 1/4-20 x 1-7/8 Inch pancake head carriage bolts with nuts.
Heavy duty 14 gauge galvanized steel, 3 inch wide.
Roller tube accepts a standard 7/16 inch diameter stem roller.
Used by most garage door manufacturers.
Position #3 see image 4 for reference
This product is similar to or the same as the following part numbers in these brands:
Prime-Line Products: GD 52106
Prime-Line Products: GD 52106