Home / Protect the door / Spring loaded door security chain “Half Cylinder” has been added to your cart. View cart Spring loaded door security chain Spring loaded door security chain for the main doors in satin nickle plated. Spring loaded door security chain quantity Add to Spec Category: Protect the door Tag: SNP Related products Both side key EPC with escutcheon -NMK Add to Spec Half cylinder with one side key EPC with narrow style escutcheon -MK Add to Spec Thumb turn and external coin EPC with narrow style escutcheon Add to Spec Automatic flush bolt Add to Spec