Sugatsune Stainless Steel concealed hinges are ideal for applications where moisture can be a problem and are NSF approved. Designed for 3/4", 9/16" and 3/8" overlay applications. These hinges have a 100° opening angle and the 3/4" and 3/8" overlay hinges come in self-close and free-swing versions. Stainless steel mounting plates, including a face frame version SUFFCB HG 1, are required and sold separately. See below.