1552 - 4.5" x 4" Stainless Steel Spring Hinge Mortise Locks 3 Gateway and a maximum

3 Gateway and a maximum of seven (7) Expanders can be addressed as one group

1 9/16” Deep Louver Assembly

Doormerica KPN1034

Schlage L9070P Grade 1 Classroom Mortise Lock

1552 - 4.5" x 4" Stainless Steel Spring Hinge Mortise Locks 3 Gateway and a maximumMcKinney 1552 4 1 2 x 4 Full Mortise Single Acting Spring Hinge, Standard Weight, Satin Stainless Steel Finish Some door frame wall and even ceiling conditions make door closers impractical. An alternative closing device is the Spring Hinge. Generally, at least two hinges on a door must be spring hinges to provide adequate closing force. Recommended for standard weight, medium frequency doors in place of door closers in apartments, hotels, motels,