25 Set Garage Door Track Bolts and Lock Nuts - 1/4" x 5/8" Flat Head Knurled Neck Fasteners - Low Profile Design for Seamless Roller Clearance, Heavy Duty Hardware for Vertical & Curved Tracks

Ultra-Low Profile for Smooth Rolling: Specially designed with extra-thin flat heads that sit flush against the garage door track. This ensures a 100% unobstructed path for rollers, eliminating the risk of jamming or noise caused by protruding bolt heads. | Enhanced Anti-Vibration Knurled Neck: Features a granular knurled pattern beneath the head that bites into the track material. This increased friction prevents the bolts from spinning or loosening during the constant vibration of automatic garage door openers, providing a permanent secure fit. | Universal Fit for North American Tracks: The standard 1/4" x 5/8" size with 1/4"-20 threads is compatible with most residential and commercial overhead door brands (Clopay, Amarr, Wayne Dalton). Perfect for both vertical track mounting and curved track junctions. | Self-Locking Flange Nut Security: Each set includes a premium lock nut with a serrated flange. Once tightened with a standard 7/16" socket, the nut stays locked in place without the need for additional washers, simplifying your DIY maintenance project. | Durable 25-Set Maintenance Value Pack: A complete hardware kit containing 25 high-strength bolts and 25 matching nuts. Ideal for a full track replacement or preventative maintenance, saving you multiple trips to the hardware store and ensuring consistent hardware quality throughout your door system.