Solid brass keepers with steel chain secures door while allowing viewing and ventilation. One 5/8 in x 2 in keeper and one 3-5/16 in x 1-3/8 in keeper. Prefix U on factory number denotes new Defender Security packaging.
| Includes | : | (1) Chain Lock with Keeper, Mounting Screw |
| Material | : | Solid Brass |
| Finish | : | Classic Bronze |