Hillman Heavy Duty Barn Door RollersHillman Item #852104
Barn Door Rollers are to prevent the wind from catching barn doors. Designed for heavy duty applications. Extreme wind can blow barn doors outward and cause damage to the doors and other essential parts. Rollers are adjustable to doors that are 1" to 3-3/4" in thickness. Mounting Holes are 5/16" in diameter for installation purposes.