This chain door guard is constructed of a steel chain, diecast housing, plate and keeper, and it comes in antique brass-plated finish. Lock engages by allowing the bolt to slide into the keyed mechanism to lock. Uses a B1 keyway, ILCO (1098M). This chain door lock allows a door to open slightly for safe viewing and ventilation. Installation of this lock placed out of children’s reach will help prevent them from opening a door themselves to enter or exit into dangerous areas. All installation fasteners are included, and it can be used on a variety of door types, on or beside the door casing.
- All components constructed of steel materials, stamped, welded and wound 
- All components come in a corrosion resistant, antique brass finish, rendering them safe for use in harsh climates 
- Designed for use with hinged swinging screen doors and storm doors constructed of wood or vinyl materials 
- Features a heavy gauge spring wire to help cushion hard openings 
- Easy to install with only a few simple tools 
- Please refer to the line art drawing for dimensions and compare with your needs before ordering (not universal)