{"id":7396,"date":"2021-12-09T04:39:34","date_gmt":"2021-12-08T20:39:34","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7396"},"modified":"2026-06-24T04:41:16","modified_gmt":"2026-06-23T20:41:16","slug":"din-fastener-certificates-what-importers-should-request","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/fr\/din-fastener-certificates-what-importers-should-request\/","title":{"rendered":"Certificats de fixation DIN\u00a0: ce que les importateurs devraient demander"},"content":{"rendered":"<p>DIN fastener certificates are often treated as routine paperwork in international trade, but in real procurement work, they are one of the most important control points for quality, traceability, and compliance. A correct certificate confirms not only what was produced, but also how it was produced, tested, and verified.<\/p>\n\n\n\n<p>Many importers only check size and grade when ordering DIN fasteners. That is not enough. Without proper certificates, even correctly manufactured bolts, nuts, washers, or studs can fail customer audits, project approvals, or incoming inspection requirements.<\/p>\n\n\n\n<p>For standard DIN fasteners and industrial supply options, buyers can review XZ Fastener\u2019s <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/standard-fasteners\/\">attaches standards<\/a> et <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/high-strength-fasteners\/\">attaches haute r\u00e9sistance<\/a> pages.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why DIN Certificates Matter<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Certificates connect product to process<\/h3>\n\n\n\n<p>A DIN fastener certificate is not just a document. It is a traceable link between the physical product and its manufacturing process, including material source, heat treatment, mechanical testing, and dimensional compliance.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Certificate Function<\/th><th>Ce que cela confirme<\/th><\/tr><\/thead><tbody><tr><td>Material traceability<\/td><td>Steel grade and chemical composition<\/td><\/tr><tr><td>Propri\u00e9t\u00e9s m\u00e9caniques<\/td><td>Tensile strength, yield strength, hardness<\/td><\/tr><tr><td>Traitement thermique<\/td><td>Process control and batch consistency<\/td><\/tr><tr><td>Dimensional compliance<\/td><td>Conformance to DIN standard<\/td><\/tr><tr><td>V\u00e9rification du rev\u00eatement<\/td><td>Finition de surface et protection contre la corrosion<\/td><\/tr><tr><td>Identification du lot<\/td><td>Suivi du num\u00e9ro de chauffe et des lots de production<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Without this information, importers cannot reliably confirm product conformity.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Core DIN Certificates Importers Should Request<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Not all certificates are equal<\/h3>\n\n\n\n<p>In real supply chains, different certificate levels are used depending on application risk and customer requirements.<\/p>\n\n\n\n<p>| Certificate Type | Common Use | Importance Level |<br>|&#8212;|&#8212;|<br>| Material Test Certificate (MTC) | Standard industrial fasteners | Basic requirement |<br>| EN 10204 2.1 | Declaration of compliance | Low verification level |<br>| EN 10204 2.2 | Test report based on batch testing | Medium verification |<br>| EN 10204 3.1 | Certified inspection with traceability | High requirement |<br>| EN 10204 3.2 | Third-party witnessed inspection | Critical applications |<\/p>\n\n\n\n<p>For most export-grade DIN fasteners, EN 10204 3.1 is the minimum acceptable standard.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Should Be Included in a DIN Certificate<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">A complete certificate must match the shipment<\/h3>\n\n\n\n<p>Importers should check that certificate details match physical goods exactly. Mismatches in grade, size, coating, or heat number are common sources of rejection.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Article de certificat<\/th><th>What Importers Should Check<\/th><\/tr><\/thead><tbody><tr><td>DIN standard reference<\/td><td>Correct DIN number (e.g., DIN 933, DIN 934, DIN 125)<\/td><\/tr><tr><td>Qualit\u00e9 du mat\u00e9riau<\/td><td>Matches order specification<\/td><\/tr><tr><td>Num\u00e9ro de manche<\/td><td>Traceable to production batch<\/td><\/tr><tr><td>Mechanical test values<\/td><td>Tensile, yield, hardness<\/td><\/tr><tr><td>Composition chimique<\/td><td>Confirms steel grade<\/td><\/tr><tr><td>Coating specification<\/td><td>Zinc, HDG, black oxide, etc.<\/td><\/tr><tr><td>Quantity covered<\/td><td>Matches shipment volume<\/td><\/tr><tr><td>Manufacturer stamp<\/td><td>Authenticity verification<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Pour comparer les mat\u00e9riaux, les acheteurs peuvent consulter les mod\u00e8les XZ Fastener. <a href=\"https:\/\/xzfastener.com\/fr\/fastener-material\/carbon-steel\/\">attaches en acier au carbone<\/a> et <a href=\"https:\/\/xzfastener.com\/fr\/fastener-material\/stainless-steel\/\">attaches en acier inoxydable<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Importer Mistakes<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Certificates are often checked too late<\/h3>\n\n\n\n<p>In many cases, importers only review documents after shipment arrives. That is too late to correct errors.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Erreur<\/th><th>R\u00e9sultat<\/th><\/tr><\/thead><tbody><tr><td>Accepting generic certificates<\/td><td>No real traceability<\/td><\/tr><tr><td>Not checking heat numbers<\/td><td>Cannot verify batch consistency<\/td><\/tr><tr><td>Ignoring coating details<\/td><td>Corrosion performance mismatch<\/td><\/tr><tr><td>Missing DIN reference<\/td><td>Standard confusion in audits<\/td><\/tr><tr><td>No third-party requirement defined<\/td><td>Project approval failure<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A certificate should be defined in the RFQ stage, not requested after production.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DIN Certificate vs Product Standard<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Standards define geometry, certificates define proof<\/h3>\n\n\n\n<p>DIN standards define fastener dimensions and tolerances. Certificates prove that production followed those standards using correct materials and processes.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Aspect<\/th><th>Norme DIN<\/th><th>Certificat<\/th><\/tr><\/thead><tbody><tr><td>Objectif<\/td><td>Defines design dimensions<\/td><td>Confirms manufacturing compliance<\/td><\/tr><tr><td>Scope<\/td><td>Size, thread, shape<\/td><td>Mat\u00e9riel, tests, tra\u00e7abilit\u00e9<\/td><\/tr><tr><td>Control point<\/td><td>Engineering design<\/td><td>Quality verification<\/td><\/tr><tr><td>Timing<\/td><td>Avant la production<\/td><td>After production<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Both are required for industrial procurement. One without the other is incomplete.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">When Higher-Level Certificates Are Required<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Risk level defines documentation level<\/h3>\n\n\n\n<p>Not every fastener order requires the same certificate level. Critical applications require stricter documentation.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Demande<\/th><th>Recommended Certificate<\/th><\/tr><\/thead><tbody><tr><td>Machines g\u00e9n\u00e9rales<\/td><td>EN 10204 2.2 or MTC<\/td><\/tr><tr><td>Projets de construction<\/td><td>EN 10204 3.1<\/td><\/tr><tr><td>Acier de construction<\/td><td>EN 10204 3.1 with traceability<\/td><\/tr><tr><td>Syst\u00e8mes de pression<\/td><td>3.1 or 3.2 depending on code<\/td><\/tr><tr><td>Offshore \/ energy<\/td><td>3.1 + third-party inspection<\/td><\/tr><tr><td>OEM safety parts<\/td><td>Full traceability required<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Pour les applications \u00e0 haute r\u00e9sistance, voir les XZ Fastener <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/high-strength-fasteners\/\">attaches haute r\u00e9sistance<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Coating and Certificate Matching<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Surface finish must be documented correctly<\/h3>\n\n\n\n<p>Coated DIN fasteners require additional verification. Coating type, thickness, and process must be reflected in the certificate.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Type de rev\u00eatement<\/th><th>Certificate Concern<\/th><\/tr><\/thead><tbody><tr><td>Zingage<\/td><td>Thickness and corrosion resistance<\/td><\/tr><tr><td>Galvanisation \u00e0 chaud<\/td><td>Coating weight and thread fit<\/td><\/tr><tr><td>Oxyde noir<\/td><td>Oil treatment confirmation<\/td><\/tr><tr><td>Flocon de zinc<\/td><td>Process control and uniformity<\/td><\/tr><tr><td>Rev\u00eatement PTFE<\/td><td>Friction behavior and torque impact<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>For coating categories, buyers can review XZ Fastener\u2019s <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/various-coated-fasteners\/\">diverses attaches enduites<\/a>, <a href=\"https:\/\/xzfastener.com\/fr\/fastener-coating\/hot-dip-galvanizing\/\">galvanisation \u00e0 chaud<\/a>, et <a href=\"https:\/\/xzfastener.com\/fr\/fastener-coating\/teflon-coating\/\">Rev\u00eatement PTFE<\/a> pages.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Checklist for Importers<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Define certificate requirements before ordering<\/h3>\n\n\n\n<p>A proper RFQ for DIN fasteners should include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DIN standard number and fastener type.<\/li>\n\n\n\n<li>Material grade and mechanical properties.<\/li>\n\n\n\n<li>Required certificate level (MTC, 2.2, 3.1, 3.2).<\/li>\n\n\n\n<li>Heat number traceability requirement.<\/li>\n\n\n\n<li>Type de rev\u00eatement et exigence d\u2019\u00e9paisseur.<\/li>\n\n\n\n<li>Quantity per batch and shipment.<\/li>\n\n\n\n<li>Inspection or third-party testing requirement.<\/li>\n\n\n\n<li>Exigences en mati\u00e8re d'emballage et d'\u00e9tiquetage.<\/li>\n\n\n\n<li>Application type and industry.<\/li>\n<\/ul>\n\n\n\n<p>For project-based DIN fasteners or certified supply, send technical requirements through <a href=\"https:\/\/xzfastener.com\/fr\/home\/contact-us\/\">XZ Fastener Contactez-nous<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Recommandation finale<\/h2>\n\n\n\n<p>DIN fastener certificates are not just paperwork. They are proof of compliance, traceability, and manufacturing control. Importers should treat certificate selection as part of technical specification, not administrative documentation.<\/p>\n\n\n\n<p>For standard industrial use, MTC or EN 10204 2.2 may be sufficient. For construction, structural, energy, or safety-critical applications, EN 10204 3.1 or higher should be clearly required before production.<\/p>\n\n\n\n<p>The safest procurement practice is simple: define certificate level, material, coating, and traceability at the RFQ stage. This prevents disputes, delays, and compliance failures after shipment.<\/p>","protected":false},"excerpt":{"rendered":"<p>DIN fastener certificates are often treated as routine paperwork in international trade, but in real procurement work, they are one of the most important control points for quality, traceability, and compliance. A correct certificate confirms not only what was produced, but also how it was produced, tested, and verified. Many importers only check size and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[505],"class_list":["post-7396","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-certificates-reports-compliance"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/7396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/comments?post=7396"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/7396\/revisions"}],"predecessor-version":[{"id":7397,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/7396\/revisions\/7397"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/media?parent=7396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/categories?post=7396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/tags?post=7396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}