{"id":6707,"date":"2026-04-13T13:52:20","date_gmt":"2026-04-13T11:52:20","guid":{"rendered":"https:\/\/www.dueemmesidol.it\/?page_id=6707"},"modified":"2026-09-18T10:57:19","modified_gmt":"2026-09-18T08:57:19","slug":"rivestimenti-protettivi-per-elementi-di-fissaggio","status":"publish","type":"page","link":"https:\/\/www.dueemmesidol.it\/it\/fastener-protective-coatings\/","title":{"rendered":"Rivestimenti protettivi per elementi di fissaggio industriali"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"6707\" class=\"elementor elementor-6707\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-14149eb e-con-full e-flex e-con e-parent\" data-id=\"14149eb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ef98b36 elementor-widget elementor-widget-html\" data-id=\"ef98b36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>body.page-id-6707 #content{width:100%;max-width:none;padding:0;margin:0}body.page-id-6707 #content>.page-header{display:none}.elementor-6707>.elementor-element-14149eb,.elementor-6707>.elementor-element-14149eb>.e-con-inner{display:block;width:100%;max-width:none;min-height:0;padding:0;margin:0;background:none}.elementor-6707 .elementor-widget-html{width:100%}.ds-coatings .ds-filters{display:grid;grid-template-columns:2fr 1fr auto;gap:18px;align-items:end;margin:30px 0 18px}.ds-coatings label{display:block;font-weight:700;margin-bottom:8px}.ds-coatings input,.ds-coatings select{width:100%;min-height:48px;border:1px solid #b9bfbc;border-radius:4px;background:#fff;color:#1c2327;padding:12px;font:inherit}.ds-coatings .ds-table-wrap{overflow:auto;max-width:100%;border:1px solid #dedfda;border-radius:6px}.ds-coatings table{width:100%;min-width:740px;border-collapse:collapse;font-size:15px;margin:0}.ds-coatings th{background:#1c2327;color:#fff;text-align:left;padding:18px}.ds-coatings td{padding:18px;vertical-align:top;border-bottom:1px solid #dedfda}.ds-coatings tbody tr:nth-child(even){background:#f7f7f5}.ds-coatings [hidden]{display:none!important}.ds-coatings .ds-count{font-size:14px;margin:0 0 14px}.ds-coatings .ds-ref{font-size:14px}.ds-coatings .ds-ref a{text-decoration:underline}.ds-coatings .ds-card p{text-align:center}.ds-coatings .ds-table-wrap:focus-visible{outline:3px solid #fbbd43;outline-offset:3px}@media(max-width:767px){.ds-coatings .ds-filters{grid-template-columns:1fr}.ds-coatings .ds-filters button{justify-self:start}}.ds-coatings #materials{scroll-margin-top:120px}<\/style><div class=\"ds-page ds-coatings\" data-no-translation><section class=\"ds-internal-hero\"><div class=\"ds-shell\"><p class=\"ds-eyebrow\"><span lang=\"en\" data-no-translation>TECHNICAL GUIDE \u00b7 SURFACE PROTECTION<\/span><span lang=\"it\" data-no-translation>GUIDA TECNICA \u00b7 PROTEZIONE SUPERFICIALE<\/span><\/p><h1><span lang=\"en\" data-no-translation>Protective coatings for industrial fasteners<\/span><span lang=\"it\" data-no-translation>Rivestimenti protettivi per fissaggi industriali<\/span><\/h1><p><span lang=\"en\" data-no-translation>Specify corrosion protection, friction and assembly requirements as one coordinated system.<\/span><span lang=\"it\" data-no-translation>Definisci protezione dalla corrosione, attrito e requisiti di montaggio come un unico sistema coordinato.<\/span><\/p><div class=\"ds-actions\"><a class=\"ds-btn\" href=\"#materials\"><span lang=\"en\" data-no-translation>Compare the treatments<\/span><span lang=\"it\" data-no-translation>Confronta i trattamenti<\/span><\/a><\/div><\/div><\/section><section class=\"ds-section\"><div class=\"ds-shell\"><header class=\"ds-section-head\"><h2><span lang=\"en\" data-no-translation>Select for the joint, not just the finish<\/span><span lang=\"it\" data-no-translation>Scegli in funzione della giunzione<\/span><\/h2><\/header><div class=\"ds-grid\"><article class=\"ds-card\"><h3><span lang=\"en\" data-no-translation>Environment<\/span><span lang=\"it\" data-no-translation>Ambiente<\/span><\/h3><p><span lang=\"en\" data-no-translation>Describe humidity, chemicals, chlorides, temperature and intended service life.<\/span><span lang=\"it\" data-no-translation>Descrivi umidit\u00e0, sostanze chimiche, cloruri, temperatura e durata di progetto.<\/span><\/p><\/article><article class=\"ds-card\"><h3><span lang=\"en\" data-no-translation>Assembly<\/span><span lang=\"it\" data-no-translation>Montaggio<\/span><\/h3><p><span lang=\"en\" data-no-translation>Specify friction range, lubrication, tightening method and thread fit.<\/span><span lang=\"it\" data-no-translation>Specifica intervallo di attrito, lubrificazione, metodo di serraggio e accoppiamento delle filettature.<\/span><\/p><\/article><article class=\"ds-card\"><h3><span lang=\"en\" data-no-translation>Process compatibility<\/span><span lang=\"it\" data-no-translation>Compatibilit\u00e0 del processo<\/span><\/h3><p><span lang=\"en\" data-no-translation>Consider steel strength, hardness, pretreatment and the selected coating process together.<\/span><span lang=\"it\" data-no-translation>Considera insieme resistenza e durezza dell\u2019acciaio, pretrattamento e processo di rivestimento.<\/span><\/p><\/article><\/div><\/div><\/section><section class=\"ds-section ds-soft\" id=\"materials\"><div class=\"ds-shell\"><header class=\"ds-section-head\"><h2><span lang=\"en\" data-no-translation>Coating systems at a glance<\/span><span lang=\"it\" data-no-translation>Sistemi di rivestimento a confronto<\/span><\/h2><p><span lang=\"en\" data-no-translation>Use this guide to prepare the specification. Salt-spray hours and friction coefficients must be tied to a defined coating system, test method and acceptance criterion.<\/span><span lang=\"it\" data-no-translation>Usa questa guida per preparare la specifica. Ore in nebbia salina e coefficienti di attrito devono riferirsi a un sistema definito, a un metodo di prova e a un criterio di accettazione.<\/span><\/p><\/header><div class=\"ds-filters\"><div><label for=\"ds-mat-search\"><span lang=\"en\" data-no-translation>Search treatment<\/span><span lang=\"it\" data-no-translation>Cerca trattamento<\/span><\/label><input id=\"ds-mat-search\" type=\"search\"><\/div><div><label for=\"ds-mat-standard\"><span lang=\"en\" data-no-translation>Process family<\/span><span lang=\"it\" data-no-translation>Famiglia di processo<\/span><\/label><select id=\"ds-mat-standard\"><option value=\"all\">All \/ Tutti<\/option><option value=\"Electroplated\">Electroplated \/ Elettrolitici<\/option><option value=\"Zinc flake\">Zinc flake \/ Lamellari<\/option><option value=\"Hot dip\">Hot dip \/ A caldo<\/option><option value=\"Conversion\">Conversion \/ Conversione<\/option><\/select><\/div><button type=\"button\" class=\"ds-btn ds-btn-outline\" id=\"ds-mat-reset\"><span lang=\"en\" data-no-translation>Reset<\/span><span lang=\"it\" data-no-translation>Azzera filtri<\/span><\/button><\/div><p id=\"ds-mat-count\" class=\"ds-count\" aria-live=\"polite\"><\/p><div class=\"ds-table-wrap\" tabindex=\"0\" role=\"region\" aria-labelledby=\"ds-mat-caption\"><table><caption id=\"ds-mat-caption\"><span lang=\"en\" data-no-translation>Coating reference guide \u2014 scroll horizontally on small screens<\/span><span lang=\"it\" data-no-translation>Guida ai rivestimenti \u2014 scorri orizzontalmente sugli schermi piccoli<\/span><\/caption><thead><tr><th scope=\"col\"><span lang=\"en\" data-no-translation>Treatment<\/span><span lang=\"it\" data-no-translation>Trattamento<\/span><\/th><th scope=\"col\"><span lang=\"en\" data-no-translation>Family<\/span><span lang=\"it\" data-no-translation>Famiglia<\/span><\/th><th scope=\"col\"><span lang=\"en\" data-no-translation>What to specify<\/span><span lang=\"it\" data-no-translation>Cosa specificare<\/span><\/th><\/tr><\/thead><tbody><tr data-system=\"Electroplated\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>Zinc plating \u2014 clear<\/span><span lang=\"it\" data-no-translation>Zincatura elettrolitica \u2014 chiara<\/span><\/th><td><span lang=\"en\" data-no-translation>Electroplated<\/span><span lang=\"it\" data-no-translation>Elettrolitico<\/span><\/td><td><span lang=\"en\" data-no-translation>Specify thickness, passivation, sealing and corrosion-test requirements.<\/span><span lang=\"it\" data-no-translation>Specifica spessore, passivazione, sigillatura e requisiti delle prove di corrosione.<\/span><\/td><\/tr><tr data-system=\"Electroplated\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>Zinc plating \u2014 yellow<\/span><span lang=\"it\" data-no-translation>Zincatura elettrolitica \u2014 gialla<\/span><\/th><td><span lang=\"en\" data-no-translation>Electroplated<\/span><span lang=\"it\" data-no-translation>Elettrolitico<\/span><\/td><td><span lang=\"en\" data-no-translation>Colour alone does not define chemistry, compliance or protective performance.<\/span><span lang=\"it\" data-no-translation>Il colore da solo non definisce composizione, conformit\u00e0 o prestazioni protettive.<\/span><\/td><\/tr><tr data-system=\"Electroplated\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>Zinc-nickel<\/span><span lang=\"it\" data-no-translation>Zinco-nichel<\/span><\/th><td><span lang=\"en\" data-no-translation>Electroplated<\/span><span lang=\"it\" data-no-translation>Elettrolitico<\/span><\/td><td><span lang=\"en\" data-no-translation>Define the complete coating system and hydrogen-risk controls for the fastener.<\/span><span lang=\"it\" data-no-translation>Definisci il sistema completo e i controlli del rischio da idrogeno per il fissaggio.<\/span><\/td><\/tr><tr data-system=\"Zinc flake\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>GEOMET\u00ae 321 \u2014 basecoat<\/span><span lang=\"it\" data-no-translation>GEOMET\u00ae 321 \u2014 rivestimento base<\/span><\/th><td><span lang=\"en\" data-no-translation>Zinc flake<\/span><span lang=\"it\" data-no-translation>Zinco lamellare<\/span><\/td><td><span lang=\"en\" data-no-translation>Confirm the selected system, coating mass and customer specification.<\/span><span lang=\"it\" data-no-translation>Conferma sistema selezionato, massa del rivestimento e specifica cliente.<\/span><\/td><\/tr><tr data-system=\"Zinc flake\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>GEOMET\u00ae 321 + topcoat<\/span><span lang=\"it\" data-no-translation>GEOMET\u00ae 321 + topcoat<\/span><\/th><td><span lang=\"en\" data-no-translation>Zinc flake<\/span><span lang=\"it\" data-no-translation>Zinco lamellare<\/span><\/td><td><span lang=\"en\" data-no-translation>Identify the topcoat and friction requirements for the assembly.<\/span><span lang=\"it\" data-no-translation>Identifica il topcoat e i requisiti di attrito dell\u2019assemblaggio.<\/span><\/td><\/tr><tr data-system=\"Zinc flake\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>GEOMET\u00ae 500<\/span><span lang=\"it\" data-no-translation>GEOMET\u00ae 500<\/span><\/th><td><span lang=\"en\" data-no-translation>Zinc flake<\/span><span lang=\"it\" data-no-translation>Zinco lamellare<\/span><\/td><td><span lang=\"en\" data-no-translation>Refer to the exact manufacturer specification for the lubricated system.<\/span><span lang=\"it\" data-no-translation>Fai riferimento alla specifica esatta del produttore per il sistema lubrificato.<\/span><\/td><\/tr><tr data-system=\"Zinc flake\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>GEOMET\u00ae + PLUS\u00ae \/ GEOKOTE\u00ae<\/span><span lang=\"it\" data-no-translation>GEOMET\u00ae + PLUS\u00ae \/ GEOKOTE\u00ae<\/span><\/th><td><span lang=\"en\" data-no-translation>Zinc flake<\/span><span lang=\"it\" data-no-translation>Zinco lamellare<\/span><\/td><td><span lang=\"en\" data-no-translation>Specify the complete basecoat\/topcoat combination; values are system-specific.<\/span><span lang=\"it\" data-no-translation>Specifica la combinazione completa basecoat\/topcoat: i valori dipendono dal sistema.<\/span><\/td><\/tr><tr data-system=\"Zinc flake\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>GEOBLACK\u00ae<\/span><span lang=\"it\" data-no-translation>GEOBLACK\u00ae<\/span><\/th><td><span lang=\"en\" data-no-translation>Zinc flake<\/span><span lang=\"it\" data-no-translation>Zinco lamellare<\/span><\/td><td><span lang=\"en\" data-no-translation>Confirm colour, corrosion performance and friction for the selected system.<\/span><span lang=\"it\" data-no-translation>Conferma colore, protezione dalla corrosione e attrito del sistema selezionato.<\/span><\/td><\/tr><tr data-system=\"Hot dip\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>Hot-dip galvanizing<\/span><span lang=\"it\" data-no-translation>Zincatura a caldo<\/span><\/th><td><span lang=\"en\" data-no-translation>Hot dip<\/span><span lang=\"it\" data-no-translation>A caldo<\/span><\/td><td><span lang=\"en\" data-no-translation>Check thread allowances, dimensions and applicable product requirements.<\/span><span lang=\"it\" data-no-translation>Verifica tolleranze di filettatura, dimensioni e requisiti applicabili al prodotto.<\/span><\/td><\/tr><tr data-system=\"Conversion\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>Phosphating + oil<\/span><span lang=\"it\" data-no-translation>Fosfatazione + olio<\/span><\/th><td><span lang=\"en\" data-no-translation>Conversion<\/span><span lang=\"it\" data-no-translation>Conversione<\/span><\/td><td><span lang=\"en\" data-no-translation>Specify the supplementary oil and storage or service conditions.<\/span><span lang=\"it\" data-no-translation>Specifica l\u2019olio supplementare e le condizioni di stoccaggio o servizio.<\/span><\/td><\/tr><tr data-system=\"Conversion\"><th scope=\"row\" style=\"background:transparent;color:#1c2327\"><span lang=\"en\" data-no-translation>Black oxide + oil<\/span><span lang=\"it\" data-no-translation>Brunitura + olio<\/span><\/th><td><span lang=\"en\" data-no-translation>Conversion<\/span><span lang=\"it\" data-no-translation>Conversione<\/span><\/td><td><span lang=\"en\" data-no-translation>Define appearance and supplementary protection; do not assume outdoor durability.<\/span><span lang=\"it\" data-no-translation>Definisci aspetto e protezione supplementare, senza presumere durabilit\u00e0 all\u2019esterno.<\/span><\/td><\/tr><\/tbody><\/table><\/div><p id=\"ds-mat-empty\" hidden><span lang=\"en\" data-no-translation>No matching treatments. Reset the filters to see all references.<\/span><span lang=\"it\" data-no-translation>Nessun trattamento corrispondente. Azzera i filtri per vedere tutti i riferimenti.<\/span><\/p><\/div><\/section><section class=\"ds-section\"><div class=\"ds-shell\"><header class=\"ds-section-head\"><h2><span lang=\"en\" data-no-translation>Three checks before confirmation<\/span><span lang=\"it\" data-no-translation>Tre verifiche prima della conferma<\/span><\/h2><\/header><div class=\"ds-grid\"><article class=\"ds-card\"><h3><span lang=\"en\" data-no-translation>Hydrogen embrittlement<\/span><span lang=\"it\" data-no-translation>Infragilimento da idrogeno<\/span><\/h3><p><span lang=\"en\" data-no-translation>Risk assessment must include material susceptibility, preparation and deposition. A non-electrolytic coating does not justify ignoring the rest of the process.<\/span><span lang=\"it\" data-no-translation>La valutazione deve includere suscettibilit\u00e0 del materiale, preparazione e deposizione. Un rivestimento non elettrolitico non giustifica l\u2019esclusione delle altre fasi del processo.<\/span><\/p><\/article><article class=\"ds-card\"><h3><span lang=\"en\" data-no-translation>Thread fit<\/span><span lang=\"it\" data-no-translation>Accoppiamento delle filettature<\/span><\/h3><p><span lang=\"en\" data-no-translation>Coating thickness changes the available clearance. Confirm the permitted tolerances and compatibility of the complete assembly.<\/span><span lang=\"it\" data-no-translation>Lo spessore del rivestimento modifica il gioco disponibile. Conferma tolleranze consentite e compatibilit\u00e0 dell\u2019assieme completo.<\/span><\/p><\/article><article class=\"ds-card\"><h3><span lang=\"en\" data-no-translation>Test interpretation<\/span><span lang=\"it\" data-no-translation>Interpretazione delle prove<\/span><\/h3><p><span lang=\"en\" data-no-translation>Accelerated corrosion-test results are not a direct prediction of service life. Compare only clearly defined systems and test conditions.<\/span><span lang=\"it\" data-no-translation>I risultati delle prove accelerate di corrosione non prevedono direttamente la durata in servizio. Confronta solo sistemi e condizioni di prova definiti.<\/span><\/p><\/article><\/div><p class=\"ds-ref\"><span lang=\"en\" data-no-translation>Technical references:<\/span><span lang=\"it\" data-no-translation>Riferimenti tecnici:<\/span> <a href=\"https:\/\/www.iso.org\/standard\/36897.html\" target=\"_blank\" rel=\"noopener\">ISO 10684<\/a> \u00b7 <a href=\"https:\/\/www.bossard.com\/-\/media\/bossard-group\/website\/documents\/white-paper\/bossard-whitepaper-electroplating-zinc-flake-en-04-2022.pdf?sc_lang=en\" target=\"_blank\" rel=\"noopener\"><span lang=\"en\" data-no-translation>Bossard: electroplating and zinc flake<\/span><span lang=\"it\" data-no-translation>Bossard: rivestimenti elettrolitici e lamellari<\/span><\/a> \u00b7 <a href=\"https:\/\/www.nofmetalcoatings.com\/europe\/\" target=\"_blank\" rel=\"noopener\">NOF Metal Coatings<\/a><\/p><\/div><\/section><section class=\"ds-final\"><div class=\"ds-shell\"><h2><span lang=\"en\" data-no-translation>Define the coating with your fastening requirement<\/span><span lang=\"it\" data-no-translation>Definisci il rivestimento insieme al fissaggio<\/span><\/h2><p><span lang=\"en\" data-no-translation>Send the drawing, property class, coating specification and assembly conditions.<\/span><span lang=\"it\" data-no-translation>Invia disegno, classe di resistenza, specifica del rivestimento e condizioni di montaggio.<\/span><\/p><div class=\"ds-actions\"><a class=\"ds-btn\" data-lang=\"en\" href=\"\/request-technical-quotation\/\">Send your drawing \/ Request a quote<\/a><a class=\"ds-btn\" data-lang=\"it\" href=\"\/it\/richiedere-un-preventivo-tecnico\/\">Invia il disegno \/ Richiedi un\u2019offerta<\/a><\/div><\/div><\/section><\/div><script>(()=>{const r=document.querySelector('.ds-coatings');if(!r)return;const q=r.querySelector('#ds-mat-search'),s=r.querySelector('#ds-mat-standard'),rows=[...r.querySelectorAll('tbody tr')],count=r.querySelector('#ds-mat-count');const it=document.documentElement.lang.startsWith('it');const labels=it?['Tutti','Elettrolitici','Zinco lamellare','A caldo','Conversione']:['All','Electroplated','Zinc flake','Hot dip','Conversion'];[...s.options].forEach((o,i)=>o.textContent=labels[i]);function filter(){let n=0;const term=q.value.toLocaleLowerCase();rows.forEach(row=>{const show=(s.value==='all'||row.dataset.system===s.value)&&row.textContent.toLocaleLowerCase().includes(term);row.hidden=!show;if(show)n++});count.textContent=n+(document.documentElement.lang.startsWith('it')?(n===1?' riferimento':' riferimenti'):(n===1?' reference':' references'));r.querySelector('#ds-mat-empty').hidden=n>0;}q.addEventListener('input',filter);s.addEventListener('change',filter);r.querySelector('#ds-mat-reset').addEventListener('click',()=>{q.value='';s.value='all';filter()});filter()})();<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>TECHNICAL GUIDE \u00b7 SURFACE PROTECTIONGUIDA TECNICA \u00b7 PROTEZIONE SUPERFICIALE Protective coatings for industrial fastenersRivestimenti protettivi per fissaggi industriali Specify corrosion protection, friction and assembly requirements as one coordinated system.Definisci protezione dalla corrosione, attrito e requisiti di montaggio come un unico sistema coordinato. Compare the treatmentsConfronta i trattamenti Select for the joint, not just the finishScegli [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":6699,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6707","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.8 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Protective Coatings for Fasteners and Corrosion Protection<\/title>\n<meta name=\"description\" content=\"Protective coatings for industrial fasteners. 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