{"product_id":"2-piece-din-night-latch-72mm-c-c-backset-55mm","title":"DIN night latch - 72mm centre with 55mm or 60mm backset options - Lock suitable for use with Wireless Smart Handles","description":"\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"472ef4f5-2863-4496-bf7b-3452b734964f\" data-testid=\"conversation-turn-68\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"ef19ca0b-00c5-4224-b380-d57b33c8fdfc\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003ch2 data-start=\"0\" data-end=\"82\"\u003eZOO ZDL7255NL \/ ZDL7260NL – DIN Night Latch (72 mm c\/c, 55 \u0026amp; 60 mm Backset)\u003c\/h2\u003e\n\u003cp data-start=\"84\" data-end=\"502\"\u003eThe ZOO ZDL7255NL \/ ZDL7260NL DIN night latch is a high-quality mortice-type latch designed for secure latch-bolt operation on a wide variety of internal and external doors. Engineered for durability, performance, and compliance with modern safety standards, it provides reliable latch functionality with enhanced security features in both commercial and residential settings. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"504\" data-end=\"528\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp data-start=\"530\" data-end=\"995\"\u003eThe ZDL7255NL\/60NL series is built around a 72 mm centre distance (spindle to follower) to suit standard DIN-format door furniture, offering two backset options — 55 mm and 60 mm — to match common door preparations. The night latch is supplied in satin stainless steel finish and is available with either a square or radius profile forend and strike plate to complement a range of architectural hardware styles. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"997\" data-end=\"1017\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"1019\" data-end=\"2582\"\u003e\n\u003cli data-start=\"1019\" data-end=\"1159\"\u003e\n\u003cp data-start=\"1021\" data-end=\"1159\"\u003eDIN standard 72 mm centres: Designed for compatibility with DIN-format handles and lever sets. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1160\" data-end=\"1342\"\u003e\n\u003cp data-start=\"1162\" data-end=\"1342\"\u003eBackset options: Available in 55 mm (ZDL7255NL) or 60 mm (ZDL7260NL) backset to suit different door depths and frame conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1343\" data-end=\"1624\"\u003e\n\u003cp data-start=\"1345\" data-end=\"1361\"\u003eMaterials:\u003c\/p\u003e\n\u003cul data-start=\"1364\" data-end=\"1624\"\u003e\n\u003cli data-start=\"1364\" data-end=\"1500\"\u003e\n\u003cp data-start=\"1366\" data-end=\"1500\"\u003eSS304 one-piece stainless steel forend and strike for durability and corrosion resistance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1503\" data-end=\"1624\"\u003e\n\u003cp data-start=\"1505\" data-end=\"1624\"\u003eSS304 latch bolt with integrated anti-thrust pin for enhanced security. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1625\" data-end=\"1780\"\u003e\n\u003cp data-start=\"1627\" data-end=\"1780\"\u003eGrip-tight follower: Ensures positive engagement with the operating spindle and reduces lever play over time. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1781\" data-end=\"1941\"\u003e\n\u003cp data-start=\"1783\" data-end=\"1941\"\u003eForend profiles: Choose between square or radius (rounded edge) profile to match door hardware aesthetics. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1942\" data-end=\"2212\"\u003e\n\u003cp data-start=\"1944\" data-end=\"2212\"\u003eFire testing: Successfully fire tested in accordance with BS EN 1634-1, making it suitable for use on timber fire doors up to 120 min and steel fire doors up to 240 min when installed with appropriate fire seals. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2213\" data-end=\"2382\"\u003e\n\u003cp data-start=\"2215\" data-end=\"2382\"\u003ePerformance standard: Mechanically tested to BS EN 12209:2003 Grade 3, demonstrating reliable operation and durability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2383\" data-end=\"2582\"\u003e\n\u003cp data-start=\"2385\" data-end=\"2582\"\u003eCertification: UKCA marked (Certificate AG7883), CE marked (Certificate AG5154), and Certifire approved (CF850) for assured safety and performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2584\" data-end=\"2621\"\u003eDimensions \u0026amp; Physical Details\u003c\/h3\u003e\n\u003cul data-start=\"2623\" data-end=\"3113\"\u003e\n\u003cli data-start=\"2623\" data-end=\"2739\"\u003e\n\u003cp data-start=\"2625\" data-end=\"2739\"\u003eCase size (55 mm backset): Approximately 85 mm (W) × 165 mm (H). \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2740\" data-end=\"2856\"\u003e\n\u003cp data-start=\"2742\" data-end=\"2856\"\u003eCase size (60 mm backset): Approximately 90 mm (W) × 165 mm (H). \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2857\" data-end=\"2983\"\u003e\n\u003cp data-start=\"2859\" data-end=\"2983\"\u003eFaceplate \/ Forend: 235 mm (L) × 22 mm (W) × 3 mm (thick) stainless steel. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2984\" data-end=\"3113\"\u003e\n\u003cp data-start=\"2986\" data-end=\"3113\"\u003eLatch Centres: 72 mm between spindle and follower — suitable for DIN handles. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"3115\" data-end=\"3143\"\u003eFunction \u0026amp; Operation\u003c\/h3\u003e\n\u003cp data-start=\"3145\" data-end=\"3556\"\u003eThe night latch operates via a sprung latch bolt that can be operated from the internal side by a handle or lever and from the external side by a key or cylinder (depending on configuration). An anti-thrust pin enhances resistance to forced entry. Ideal for use on front doors, side doors, and other doors where latch-bolt security is sufficient without full deadlocking. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"3558\" data-end=\"3591\"\u003eSuitability \u0026amp; Typical Use\u003c\/h3\u003e\n\u003cp data-start=\"3593\" data-end=\"3639\"\u003eThe ZDL7255NL\/60NL night latch is suited to:\u003c\/p\u003e\n\u003cul data-start=\"3640\" data-end=\"3848\"\u003e\n\u003cli data-start=\"3640\" data-end=\"3684\"\u003e\n\u003cp data-start=\"3642\" data-end=\"3684\"\u003eResidential and apartment entrance doors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3685\" data-end=\"3734\"\u003e\n\u003cp data-start=\"3687\" data-end=\"3734\"\u003eOffice and commercial internal\/external doors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3735\" data-end=\"3791\"\u003e\n\u003cp data-start=\"3737\" data-end=\"3791\"\u003eSchool, healthcare, and public building access doors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3792\" data-end=\"3848\"\u003e\n\u003cp data-start=\"3794\" data-end=\"3848\"\u003eRetrofit projects replacing existing DIN night latches\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3850\" data-end=\"4072\"\u003eIts fire-tested status also allows integration into certified fire door assemblies (with appropriate intumescent protection), providing peace of mind in life-safety applications.\u003c\/p\u003e\n\u003cp data-start=\"3850\" data-end=\"4072\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0956\/5313\/4722\/files\/ChatGPT_Image_Jan_28_2026_at_02_17_17_PM_00d1bf7f-b6c5-421d-b9a6-c746855913df.png?v=1770129973\" alt=\"\" width=\"140\" height=\"93\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e","brand":"Integrated Security ","offers":[{"title":"55mm","offer_id":56291602366850,"sku":null,"price":38.4,"currency_code":"EUR","in_stock":true},{"title":"60mm","offer_id":56291602399618,"sku":null,"price":38.4,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5313\/4722\/files\/20260307_1247_Image_Generation_remix_01kk3m757kep7bs51jjz1r6yrg.png?v=1772869696","url":"https:\/\/store.integratedsecurity.ie\/products\/2-piece-din-night-latch-72mm-c-c-backset-55mm","provider":"Integrated Security ","version":"1.0","type":"link"}