SOSS 220IC 5-1/2-in Black Mortise Concealed Door Hinge

Invisible hinge model #220 invisible closer is ideally suited for most types of doors 2 In. thick or thicker. the invisiblee closer gives you a 20 minute fire rated closer that is totally invisible from either side when the door is closed. The closure rate is completely adjustable with an Allen wrench after installation, and does not require removal of the spring closer. Installation can be either inside the door itself or inside the door jamb. Invisible hinges open a full 180° and are a single action hinge. Full mortise 20 Minute UL fire rating for wood or metal doors Wood and machine screws are included Completely concealed when door is closed Adjustable rate of closure CA Residents: Prop 65 WARNING(S)