Home / Protect the door / Spring loaded door security chain “Concealed Hinge” 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 BOQ Category: Protect the door Tag: SNP Related products Both side key EPC with escutcheon -NMK Quick View Add to BOQ Thumb turn and external key EPC with narrow style escutcheon – MK Quick View Add to BOQ Door viewer Quick View Add to BOQ Dust Proof Strike for automatic flush bolt Quick View Add to BOQ