Best (Formerly Stanley) BB855G-5 x 6 Half Mortise Heavy Weight Concealed Bearing Prison Offset Hinge, 5" x 6", Application G, Furnished Holes, Door Weighing Up To 800 Lbs, Based On a 36" x 84" Door, Using [3] Hinges, See Manuf Cut Sheet, USP Prime Coat Gray
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The Best BB855G-USP 5" x 6" Concealed Ball Bearing Detention Prison Hinge is a heavy-duty option for offset prison doors, with the capacity to support doors weighing up to 800 lbs. It is designed for use with doors measuring 36" x 84" and requires the installation of three hinges. See the manufacturer's cut sheet for further specifications and consider priming the hinge for paint in a gray finish.
For lead-lined doors to x-ray rooms and other exceptionally heavy doors
Made of double-weight steel capable of carrying doors weighing up to 800 lbs. (363 Kg) (Based on a 3' x 7' door with 3 hinges)
concealed hardened steel races contains sixteen 1/8" (3.2mm) hardened and ground steel balls which are assembled within a jacket
Concealed bearings are well lubricated ensuring smooth, long-lasting operation
Rolled knuckles are welded and machined
Typically made not swaged, no holes (application A) for full surface applications, or for full mortise (applications C) applications. All other configurations are made to order
