(10) Pack new Stanley Double Box Rail Brackets N104-786 Supports N104-786 771974. Stanley Galvanized Double Box Rail Support Brackets , model N104-786. Galvanized Double Box Rail Brackets , Adjustable, With Lags, Designed For Heavy Duty Applications, Such As Storage Sheds, Warehouse Doors, Cabins, Trailers, Etc. Listing is for 10 brackets. For all types of barn / sliding doors.The item "(10) Pack Stanley Double Box Rail Bracket Brackets N104-786 Supports" is in sale since Wednesday, December 6, 2017. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Doors & Door Hardware\Other Door Hardware". The seller is "highwaytobuy2010" and is located in Westlake, Ohio. This item can be shipped to United States.