1552 - 4.5" x 4" Stainless Steel Spring Hinge Mortise Locks That sets Trident apart from

That sets Trident apart from all other exit locks

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

1 9/16” Deep Louver Assembly

6W14-PHL Lever trim

Zinc Dichromated Chassis – Stainless Steel Exterior Housing

1552 - 4.5" x 4" Stainless Steel Spring Hinge Mortise Locks That sets Trident apart fromMcKinney 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,