Description:

Used on swing-in entry doors to provide security when opening for ventilation, and safe viewing of visitors. 3-5/16 inch wide x 2 inch tall, material thickness is 1/16 inch thick. Chain base features a chain clip holder to prevent free-swinging chain when not in use. The mounting plates of these chain door locks are constructed of extruded brass and come in a chrome plated finish. These secondary security chain door locks allow for safe ventilating and opening of entry doors.