Prime-Line Surface Slide bolt

This Storm Door Protector Chain and Spring helps to protect wood and metal out-swinging screen doors from damage when excessive force swings them open, like gusts of strong winds or running children. The steel chain installs into the door jamb and features a heavy gauge spring wire, which helps to cushion the would-be-impact, upon fast opens. These protective devices adjust to fit most any type of screen and storm door, and it comes in a corrosion-resistant, zinc-plated finish.