{"id":1971,"date":"2024-01-09T10:21:05","date_gmt":"2024-01-09T09:21:05","guid":{"rendered":"https:\/\/multisecu.fr\/?p=1971"},"modified":"2026-10-10T12:36:17","modified_gmt":"2026-10-10T10:36:17","slug":"verrou-de-securite","status":"publish","type":"post","link":"https:\/\/www.multisecu.fr\/en\/glossaire\/verrou-de-securite\/","title":{"rendered":"Security lock: definition, advantages and disadvantages!"},"content":{"rendered":"<article class=\"wp-block-group ms-glossaire ms-glossaire-article is-layout-flow wp-block-group-is-layout-flow\">\n<section class=\"wp-block-group msg-section msg-hero is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-breadcrumb wp-block-paragraph\"><a href=\"\/en\/\">Home<\/a> <span> \/ <\/span> <a href=\"\/en\/category\/glossaire\/\">Locksmith glossary<\/a><\/p>\n\n\n<div class=\"wp-block-group msg-hero-grid is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-hero-copy is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">Locking &amp; protection<\/p>\n\n\n<h1 class=\"wp-block-heading\">The security deadlock<\/h1>\n\n\n<p class=\"msg-lead wp-block-paragraph\">A security lock adds a barrier to a door or equips an appropriate access point. Its effectiveness depends on its actual strength, installation quality, and the sturdiness of the frame receiving it.<\/p>\n\n\n<p class=\"msg-meta wp-block-paragraph\">DEFINITION \u00b7 HOW IT WORKS \u00b7 ADVICE<\/p>\n\n<\/div>\n\n\n<figure class=\"wp-block-image size-full msg-photo msg-hero-photo\"><img decoding=\"async\" width=\"1920\" height=\"1452\" src=\"https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/verrou_Alpha42000.webp\" alt=\"Security lock \u2014 illustration from the MULTISECU glossary\" class=\"wp-image-1972\" srcset=\"https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/verrou_Alpha42000.webp 1920w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/verrou_Alpha42000-300x227.webp 300w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/verrou_Alpha42000-1024x774.webp 1024w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/verrou_Alpha42000-768x581.webp 768w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/verrou_Alpha42000-1536x1162.webp 1536w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group msg-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-reading is-layout-flow wp-block-group-is-layout-flow\">\n<nav class=\"wp-block-group msg-toc is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">IN THIS GUIDE<\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#section-1\">What a lock can offer<\/a><\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#section-2\">The various options<\/a><\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#section-3\">How to choose a consistent solution<\/a><\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"#section-4\">Installation, maintenance and alternatives<\/a><\/p>\n\n\n<p class=\"msg-return wp-block-paragraph\"><a href=\"\/en\/category\/glossaire\/\">\u2190 All glossary terms<\/a><\/p>\n\n<\/nav>\n\n\n<div class=\"wp-block-group msg-prose is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-note is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">THE KEY POINT TO REMEMBER<\/p>\n\n\n<p class=\"wp-block-paragraph\">The term 'security' in a commercial name does not constitute certification on its own.<\/p>\n\n<\/div>\n\n\n<section id=\"section-1\" class=\"wp-block-group msg-chapter is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">What a lock can offer<\/h2>\n\n\n<p class=\"wp-block-paragraph\">It creates an additional point of closure when the door and frame allow for correct installation. It can address a need for reinforcement or for securing a secondary access point.<\/p>\n\n\n<p class=\"wp-block-paragraph\">However, a robust bolt fixed on a degraded support is insufficient. The strike plate, screws, potential reinforcements, and cylinder zone must all be assessed together.<\/p>\n\n<\/section>\n\n\n<section id=\"section-2\" class=\"wp-block-group msg-chapter is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">The various options<\/h2>\n\n\n<p class=\"wp-block-paragraph\">The key and push-button lock is easily operated from the interior. A double cylinder requires a key from each side. A code lock uses a combination, either mechanical or electronic, depending on the model.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Small tacks and tubular closures can prevent opening, but should not automatically be considered equivalent to security locks for entry.<\/p>\n\n<\/section>\n\n\n<section id=\"section-3\" class=\"wp-block-group msg-chapter is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">How to choose a consistent solution<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Specify the usage, users, door thickness, and external exposure. Check the cylinder length, mounting possibilities, and operating clearance.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Ease of egress must remain appropriate to the location. Reinforcement can also be achieved through a multipoint lock, a protective door furniture, or frame work rather than by adding multiple independent locks.<\/p>\n\n<\/section>\n\n\n<section id=\"section-4\" class=\"wp-block-group msg-chapter is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Installation, maintenance and alternatives<\/h2>\n\n\n<p class=\"wp-block-paragraph\">A properly aligned installation allows the bolt to engage smoothly without forcing. Fasteners and operation must be checked if the door distorts or if the handle becomes difficult to operate.<\/p>\n\n\n<p class=\"wp-block-paragraph\">Alarm and video surveillance perform detection or monitoring functions; they do not replace mechanical resistance. The choice is made according to site needs and may combine several complementary methods, without unnecessarily multiplying equipment.<\/p>\n\n<\/section>\n\n\n<div class=\"wp-block-group msg-detail-media is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">IN IMAGES<\/p>\n\n\n<div class=\"wp-block-group msg-gallery is-layout-flow wp-block-group-is-layout-flow\">\n<figure class=\"wp-block-image size-full msg-photo msg-detail-photo\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/Verrou_ChifralX40-1024x683.webp\" alt=\"ChifralX40 Lock\" class=\"wp-image-1973\" srcset=\"https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/Verrou_ChifralX40-1024x683.webp 1024w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/Verrou_ChifralX40-300x200.webp 300w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/Verrou_ChifralX40-768x512.webp 768w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/Verrou_ChifralX40-1536x1024.webp 1536w, https:\/\/www.multisecu.fr\/wp-content\/uploads\/2024\/01\/Verrou_ChifralX40.webp 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group msg-section msg-related is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">FIND OUT MORE<\/p>\n\n\n<h2 class=\"wp-block-heading\">Related terms.<\/h2>\n\n\n<div class=\"wp-block-group msg-term-grid is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-term is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">GLOSSARY \u00b7 Locking &amp; protection<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.multisecu.fr\/en\/glossaire\/verrou-a-cylindre-definition-avantages-et-installation\/\">The cylinder-operated rim deadlock <span aria-hidden=\"true\">\u2197<\/span><\/a><\/h3>\n\n\n<p class=\"wp-block-paragraph\">A cylinder lock combines a small lockbox, a bolt, and a cylinder operated by a key. It can complement a lock or secure a secondary access, depending on the model and the support's resistance.<\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group msg-term is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">GLOSSARY \u00b7 Locking &amp; protection<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.multisecu.fr\/en\/glossaire\/verrous-targettes-ou-crochets-quelles-differences\/\">Key-operated lock, slide bolt or hook? <span aria-hidden=\"true\">\u2197<\/span><\/a><\/h3>\n\n\n<p class=\"wp-block-paragraph\">These three fittings maintain a closed position, but they serve different purposes. A lock can provide a keyed closure; a simple catch or hook is mainly for holding or privacy.<\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-group msg-term is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">GLOSSARY \u00b7 Locking &amp; protection<\/p>\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.multisecu.fr\/en\/glossaire\/serrure-a-combinaison-mecanique\/\">Mechanical combination lock <span aria-hidden=\"true\">\u2197<\/span><\/a><\/h3>\n\n\n<p class=\"wp-block-paragraph\">A mechanical combination lock allows opening via a code without electrical power. It can be fitted to a door, shared access, or a safe, with highly different mechanisms depending on the application.<\/p>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n\n<section class=\"wp-block-group msg-section msg-call-section is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-wrap is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-call is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group msg-call-copy is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"msg-kicker wp-block-paragraph\">MULTISECU ADVICE<\/p>\n\n\n<h2 class=\"wp-block-heading\">Uncertain about your lock?<\/h2>\n\n\n<p class=\"wp-block-paragraph\">A photo of the mechanism, along with some details about your door: we help you identify the right solution.<\/p>\n\n<\/div>\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/en\/contact\/\">Contact us \u2197<\/a><\/div>\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/en\/prestations\/\">View our services<\/a><\/div>\n\n<\/div>\n\n<\/div>\n\n<\/div>\n\n<\/section>\n\n<\/article>","protected":false},"excerpt":{"rendered":"<p>Accueil \/ Petit glossaire de serrurerie Fermeture &#038; protection Le verrou de s\u00e9curit\u00e9 Un verrou de s\u00e9curit\u00e9 ajoute une condamnation \u00e0 une porte ou \u00e9quipe un acc\u00e8s adapt\u00e9. Son int\u00e9r\u00eat d\u00e9pend de sa r\u00e9sistance r\u00e9elle, de sa pose et de la solidit\u00e9 de la menuiserie qui le re\u00e7oit. D\u00c9FINITION \u00b7 FONCTIONNEMENT \u00b7 CONSEILS DANS CETTE [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":1972,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-1971","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossaire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Security Deadlocks: Benefits and Limitations | MULTISECU<\/title>\n<meta name=\"description\" content=\"Discover our complete guide to the security lock, from its definition to its uses, advantages, and disadvantages!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.multisecu.fr\/en\/glossaire\/verrou-de-securite\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Security Deadlocks: Benefits and Limitations | MULTISECU\" \/>\n<meta property=\"og:description\" content=\"Discover our complete guide to the security lock, from its definition to its uses, advantages, and disadvantages!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.multisecu.fr\/en\/glossaire\/verrou-de-securite\/\" \/>\n<meta property=\"og:site_name\" content=\"MULTISECU Serrurier Annecy\" \/>\n<meta property=\"article:published_time\" content=\"2024-01-09T09:21:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-10T10:36:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/multisecu.fr\/wp-content\/uploads\/2024\/01\/verrou_Alpha42000.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"1452\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Romain ROSA\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Romain ROSA\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"12 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.multisecu.fr\\\/glossaire\\\/verrou-de-securite\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.multisecu.fr\\\/glossaire\\\/verrou-de-securite\\\/\"},\"author\":{\"name\":\"Romain ROSA\",\"@id\":\"https:\\\/\\\/www.multisecu.fr\\\/#\\\/schema\\\/person\\\/c4360f76348cbf8ab4a182754e6bcef3\"},\"headline\":\"Verrou de s\u00e9curit\u00e9 : d\u00e9finition, avantages et inconv\u00e9nients !\",\"datePublished\":\"2024-01-09T09:21:05+00:00\",\"dateModified\":\"2026-10-10T10:36:17+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.multisecu.fr\\\/glossaire\\\/verrou-de-securite\\\/\"},\"wordCount\":599,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.multisecu.fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.multisecu.fr\\\/glossaire\\\/verrou-de-securite\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.multisecu.fr\\\/wp-content\\\/uploads\\\/2024\\\/01\\\/verrou_Alpha42000.webp\",\"articleSection\":[\"Petit Glossaire de Serrurerie\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.multisecu.fr\\\/glossaire\\\/verrou-de-securite\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.multisecu.fr\\\/glossaire\\\/verrou-de-securite\\\/\",\"url\":\"https:\\\/\\\/www.multisecu.fr\\\/glossaire\\\/verrou-de-securite\\\/\",\"name\":\"Verrou de s\u00e9curit\u00e9 : d\u00e9finition, avantages et inconv\u00e9nients ! 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