National Hardware N112-227 Trolley Hanger

Excellent product shipping was right on time with Prime membership but item is just a bit more expensive than some competitors. I reckon the old saying you get what you pay for and this is a quality product!

These trollies work beautifully with Stanley 4" box rail. I have the rail running the length of the ridge board in my shop and use it and the trollies primarily for block and tackle pulleys. The trollies allow me attachment points and I can move a hoisted object the length of my shop. I can also hoist various items up to the loft without issue. That said; neither the trollies or the box rail have the strength to lift tonnage, but that seems purposeful on the part of the manufacturer. They're great for lifting up to a few hundred pounds or so which is about as much as I ever have cause to lift. I believe that they'd make superior sliding door hardware as well...although I haven't ever used them for such an application.

Used these for my curtain style garage doors. It rolls smooth and quietly. The perfect size.

These trolleys work excellent with their corresponding track system. The trolleys are attached to an electric winch that I use to move heavy loads.

Great trolleys

Very sturdy and they look like they will last forever. They fit into the trolley track (also Stanley) I installed perfectly. I'm using these to move a Harbor Freight electric hoist and I modified the hangers with bolts from Home Depot to make that work. The bolts in the trolley hangers come out easily.

Built some barn doors and I was glad I bought these. The track very smoothly with fairly heavy doors. I recommend these and the associated track of course.

Installed electric winch on them to lift kayak to lift and move kayak to shelf on wall.

They were a perfect fit.