Roller Guide Box Rail Hanger Bolt for Exterior Barn Doors
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- Roller guide box rail - hanger bolt attachment
- Treated galvanized steel
- Holds 300 lb doors
- Galvanized steel
- Mill
- Hnager bolts mounts through exposed door frame
- Nothing is visible on front of door when in operation
M-D Building Products Roller Guide - Hanger Bolt. Designed to attach to doors through exposed frame. No exposed trolley strap on front door as with other door roller guides. Flexible trolley axel allows door to sway to prevent unwanted damage.