{"id":55,"date":"2026-09-02T16:30:00","date_gmt":"2026-09-02T14:30:00","guid":{"rendered":"https:\/\/www.matai.cz\/blog\/?p=55"},"modified":"2026-08-31T17:19:57","modified_gmt":"2026-08-31T15:19:57","slug":"din-603-vratovy-sroub-norma","status":"publish","type":"post","link":"https:\/\/www.matai.cz\/blog\/din-603-vratovy-sroub-norma\/","title":{"rendered":"DIN 603 vratov\u00fd \u0161roub: \u010dty\u0159hran pod hlavou, pou\u017eit\u00ed a jakosti"},"content":{"rendered":"<p>Vratov\u00fd \u0161roub podle normy <strong>DIN 603<\/strong> pat\u0159\u00ed k nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edm spojovac\u00edm prvk\u016fm pro mont\u00e1\u017ee, kde je jedn\u00edm ze spojovan\u00fdch materi\u00e1l\u016f d\u0159evo. Pozn\u00e1 se na prvn\u00ed pohled: m\u00e1 velkou n\u00edzkou p\u016flkulatou (\u201ehoubovitou\u201c) hlavu bez dr\u00e1\u017eky a pod n\u00ed pravideln\u00fd \u010dty\u0159hran. Pr\u00e1v\u011b tato kombinace d\u011bl\u00e1 z vratov\u00e9ho \u0161roubu praktickou volbu tam, kde pot\u0159ebujete dotahovat spoj jen z jedn\u00e9 strany. Norma DIN 603 m\u00e1 mezin\u00e1rodn\u00ed ekvivalent <strong>ISO 8677<\/strong> a \u010desk\u00e9 zna\u010den\u00ed <strong>\u010cSN 021319<\/strong>.<\/p>\n<h2>K \u010demu slou\u017e\u00ed \u010dty\u0159hran pod hlavou<\/h2>\n<p>Hlavn\u00ed funk\u010dn\u00ed prvek vratov\u00e9ho \u0161roubu je \u010dty\u0159hrann\u00fd (\u010dtvercov\u00fd) krk um\u00edst\u011bn\u00fd bezprost\u0159edn\u011b pod hlavou. P\u0159i mont\u00e1\u017ei se \u0161roub prostr\u010d\u00ed p\u0159edvrtan\u00fdm otvorem a po dota\u017een\u00ed matice se \u010dty\u0159hran zalisuje (za\u0159\u00edzne) do m\u011bk\u010d\u00edho materi\u00e1lu \u2013 typicky d\u0159eva nebo plastu. T\u00edm se \u0161roub <strong>zajist\u00ed proti prot\u00e1\u010den\u00ed<\/strong> a cel\u00fd spoj je mo\u017en\u00e9 dotahovat jednostrann\u011b kl\u00ed\u010dem na matici, ani\u017e byste museli p\u0159idr\u017eovat hlavu. Hladk\u00e1 kulov\u00e1 hlava nav\u00edc nem\u00e1 \u017e\u00e1dn\u00fd pohon (dr\u00e1\u017eku ani vnit\u0159n\u00ed \u0161estihran), tak\u017ee po mont\u00e1\u017ei tvo\u0159\u00ed pohledov\u011b \u010distou, oblou plochu, kterou nelze snadno povolit bez n\u00e1stroje na stran\u011b matice.<\/p>\n<p>Tato vlastnost p\u0159edur\u010duje vratov\u00e9 \u0161rouby pro v\u00fdrobu vrat (odtud \u010desk\u00fd n\u00e1zev), plot\u016f, z\u00e1bradl\u00ed, lavi\u010dek, pergol, d\u0159ev\u011bn\u00fdch konstrukc\u00ed, palubek a obecn\u011b v\u0161ude, kde je p\u0159\u00edstup jen z jedn\u00e9 strany nebo kde je \u017e\u00e1douc\u00ed, aby hlava \u201ene\u0161la\u201c od\u0161roubovat zven\u010d\u00ed.<\/p>\n<h2>Geometrie hlavy a krku<\/h2>\n<p>Vratov\u00fd \u0161roub DIN 603 m\u00e1 \u010d\u00e1ste\u010dn\u00fd metrick\u00fd z\u00e1vit (krat\u0161\u00ed \u0161rouby b\u00fdvaj\u00ed z\u00e1vitovan\u00e9 po cel\u00e9 d\u00e9lce d\u0159\u00edku, del\u0161\u00ed maj\u00ed hladkou \u010d\u00e1st pod \u010dty\u0159hranem). Kl\u00ed\u010dov\u00e9 rozm\u011bry definuje norma takto:<\/p>\n<ul>\n<li><strong>dk<\/strong> \u2013 pr\u016fm\u011br p\u016flkulat\u00e9 hlavy<\/li>\n<li><strong>k<\/strong> \u2013 v\u00fd\u0161ka hlavy<\/li>\n<li><strong>v<\/strong> \u2013 \u0161\u00ed\u0159ka (strana) \u010dty\u0159hranu pod hlavou<\/li>\n<li><strong>f<\/strong> \u2013 v\u00fd\u0161ka \u010dty\u0159hrann\u00e9ho krku<\/li>\n<\/ul>\n<p>Pro spr\u00e1vnou mont\u00e1\u017e je rozhoduj\u00edc\u00ed rozm\u011br <strong>v<\/strong>: otvor v d\u0159ev\u011bn\u00e9m d\u00edlu by m\u011bl odpov\u00eddat pr\u016fm\u011bru d\u0159\u00edku, aby se \u010dty\u0159hran p\u0159i dotahov\u00e1n\u00ed mohl zalisovat do okraje otvoru. U tvrd\u0161\u00edch materi\u00e1l\u016f je vhodn\u00e9 otvor m\u00edrn\u011b srazit nebo p\u0159edvrtat tak, aby se \u010dty\u0159hran za\u0159\u00edzl, ale nepraskl podklad.<\/p>\n<h2>Rozm\u011brov\u00e1 tabulka DIN 603<\/h2>\n<p>N\u00e1sleduj\u00edc\u00ed hodnoty (v mm) vych\u00e1zej\u00ed z normy DIN 603 \/ ISO 8677. dk, k, v a f jsou uvedeny v rozsahu min\u2013max dle toleranc\u00ed normy:<\/p>\n<table>\n<thead>\n<tr>\n<th>Z\u00e1vit<\/th>\n<th>Stoup\u00e1n\u00ed<\/th>\n<th>dk (\u2300 hlavy)<\/th>\n<th>k (v\u00fd\u0161ka hlavy)<\/th>\n<th>v (strana \u010dty\u0159hranu)<\/th>\n<th>f (v\u00fd\u0161ka krku)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M5<\/td>\n<td>0,80<\/td>\n<td>12,45\u201313,55<\/td>\n<td>2,7\u20133,3<\/td>\n<td>4,52\u20135,48<\/td>\n<td>2,9\u20134,1<\/td>\n<\/tr>\n<tr>\n<td>M6<\/td>\n<td>1,00<\/td>\n<td>15,45\u201316,55<\/td>\n<td>3,12\u20133,88<\/td>\n<td>5,52\u20136,48<\/td>\n<td>3,4\u20134,6<\/td>\n<\/tr>\n<tr>\n<td>M8<\/td>\n<td>1,25<\/td>\n<td>19,35\u201320,65<\/td>\n<td>4,12\u20134,88<\/td>\n<td>7,42\u20138,58<\/td>\n<td>4,4\u20135,6<\/td>\n<\/tr>\n<tr>\n<td>M10<\/td>\n<td>1,50<\/td>\n<td>23,35\u201324,65<\/td>\n<td>4,62\u20135,38<\/td>\n<td>9,42\u201310,58<\/td>\n<td>5,4\u20136,6<\/td>\n<\/tr>\n<tr>\n<td>M12<\/td>\n<td>1,75<\/td>\n<td>29,35\u201330,65<\/td>\n<td>6,05\u20136,95<\/td>\n<td>11,3\u201312,7<\/td>\n<td>7,25\u20138,75<\/td>\n<\/tr>\n<tr>\n<td>M16<\/td>\n<td>2,00<\/td>\n<td>37,2\u201338,8<\/td>\n<td>8,05\u20138,95<\/td>\n<td>15,3\u201316,7<\/td>\n<td>11,1\u201312,9<\/td>\n<\/tr>\n<tr>\n<td>M20<\/td>\n<td>2,50<\/td>\n<td>45,2\u201346,8<\/td>\n<td>9,95\u201311,05<\/td>\n<td>19,16\u201320,84<\/td>\n<td>14,1\u201315,9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Norma pokr\u00fdv\u00e1 rozm\u011bry zhruba <strong>M5 a\u017e M20<\/strong> v d\u00e9lk\u00e1ch od 16 mm p\u0159ibli\u017en\u011b do 200 mm (dostupnost konkr\u00e9tn\u00ed d\u00e9lky z\u00e1vis\u00ed na materi\u00e1lu a jakosti). Pro p\u0159esn\u00e9 l\u00edcov\u00e1n\u00ed otvoru a tolerance v\u017edy doporu\u010dujeme ov\u011b\u0159it aktu\u00e1ln\u00ed vyd\u00e1n\u00ed normy nebo technick\u00fd list dodavatele.<\/p>\n<h2>Materi\u00e1ly a t\u0159\u00eddy pevnosti<\/h2>\n<p>Vratov\u00e9 \u0161rouby DIN 603 se vyr\u00e1b\u011bj\u00ed ve dvou hlavn\u00edch materi\u00e1lov\u00fdch lini\u00edch:<\/p>\n<ul>\n<li><strong>Ocel s povrchovou \u00fapravou<\/strong> \u2013 nej\u010dast\u011bji v t\u0159\u00edd\u00e1ch pevnosti <strong>4.6<\/strong> (mez pevnosti 400 N\/mm\u00b2), p\u0159\u00edpadn\u011b <strong>4.8 \/ 6.8 \/ 8.8<\/strong>, obvykle galvanicky pozinkovan\u00e9. Vhodn\u00e9 do interi\u00e9ru a m\u00e9n\u011b n\u00e1ro\u010dn\u00e9ho venkovn\u00edho prost\u0159ed\u00ed.<\/li>\n<li><strong>Nerezov\u00e1 ocel A2 a A4<\/strong> \u2013 austenitick\u00e1 korozivzdorn\u00e1 ocel pro venkovn\u00ed, vlhk\u00e9 a chemicky zat\u011b\u017eovan\u00e9 prost\u0159ed\u00ed. <strong>A2<\/strong> (1.4301\/1.4307) je vhodn\u00e1 do b\u011b\u017en\u00e9ho exteri\u00e9ru, <strong>A4<\/strong> (1.4401\/1.4404, s molybdenem) odol\u00e1v\u00e1 nav\u00edc chlorid\u016fm \u2013 typicky u baz\u00e9n\u016f, v p\u0159\u00edmo\u0159\u00ed nebo u chemicky agresivn\u00edch provoz\u016f.<\/li>\n<\/ul>\n<p>P\u0159i venkovn\u00ed mont\u00e1\u017ei d\u0159ev\u011bn\u00fdch konstrukc\u00ed je d\u016fle\u017eit\u00e9 zohlednit i chemii d\u0159eva: tlakov\u011b impregnovan\u00e9 \u0159ezivo b\u00fdv\u00e1 agresivn\u00ed v\u016f\u010di pozinku, proto se zde standardn\u011b vol\u00ed nerez. Pokud v\u00e1h\u00e1te mezi pozinkem a nerezem, vod\u00edtko najdete v \u010dl\u00e1nku <a href=\"\/blog\/zinkovani-galvanicke-vs-zarove\/\">galvanick\u00e9 vs. \u017e\u00e1rov\u00e9 zinkov\u00e1n\u00ed<\/a>, a rozd\u00edly mezi nerezov\u00fdmi t\u0159\u00eddami rozeb\u00edr\u00e1me v textu <a href=\"\/blog\/nerez-a2-vs-a4\/\">nerez A2 vs. A4<\/a>.<\/p>\n<h2>Mont\u00e1\u017en\u00ed doporu\u010den\u00ed<\/h2>\n<p>Pro spolehliv\u00fd spoj dodr\u017ete n\u011bkolik z\u00e1sad:<\/p>\n<ul>\n<li><strong>P\u0159edvrt\u00e1n\u00ed:<\/strong> otvor volte podle pr\u016fm\u011bru d\u0159\u00edku, ne podle \u010dty\u0159hranu \u2013 \u010dty\u0159hran se m\u00e1 teprve zalisovat. U tvrd\u00e9ho d\u0159eva otvor lehce zahloubejte, aby hlava dosedla a krk se za\u0159\u00edzl.<\/li>\n<li><strong>Podlo\u017eka pod matici:<\/strong> proto\u017ee hlava dosed\u00e1 p\u0159\u00edmo na materi\u00e1l, pou\u017e\u00edv\u00e1 se podlo\u017eka na stran\u011b matice, aby se zamezilo zabo\u0159en\u00ed matice do d\u0159eva a rozlo\u017eil se p\u0159\u00edtlak. Vhodn\u00e1 je <a href=\"\/spojovaci-material\/srouby\/\">nerezov\u00e1 ploch\u00e1 podlo\u017eka<\/a> odpov\u00eddaj\u00edc\u00edho pr\u016fm\u011bru.<\/li>\n<li><strong>Ji\u0161t\u011bn\u00ed proti povolen\u00ed:<\/strong> u nam\u00e1han\u00fdch nebo vibruj\u00edc\u00edch spoj\u016f dopl\u0148te samojistnou matici. Mechanizmy ji\u0161t\u011bn\u00ed popisuje samostatn\u00fd n\u00e1vod.<\/li>\n<li><strong>Materi\u00e1lov\u00e1 shoda:<\/strong> kombinujte vratov\u00fd \u0161roub se stejnou jakost\u00ed matice i podlo\u017eky, aby nedoch\u00e1zelo k bimetalov\u00e9 korozi (nap\u0159. nerez A4 \u0161roub + A4 matice).<\/li>\n<\/ul>\n<p>Vratov\u00e9 \u0161rouby DIN 603 standardn\u011b skladujeme v nerezu A2 i A4 a v pozinkovan\u00e9m proveden\u00ed. Dopl\u0148kov\u011b k nim nab\u00edz\u00edme odpov\u00eddaj\u00edc\u00ed <a href=\"\/spojovaci-material\/srouby\/\">\u0161estihrann\u00e9 matice DIN 934<\/a> a samojistn\u00e9 matice pro kompletn\u00ed spoj.<\/p>\n<h2>Kdy zvolit vratov\u00fd \u0161roub a kdy jin\u00fd typ<\/h2>\n<p>Vratov\u00fd \u0161roub je ide\u00e1ln\u00ed tam, kde je jedn\u00edm materi\u00e1lem d\u0159evo a kde chcete jednostrannou mont\u00e1\u017e bez p\u0159idr\u017eov\u00e1n\u00ed hlavy. Pokud spojujete kov s kovem nebo pot\u0159ebujete definovan\u00fd utahovac\u00ed moment p\u0159es hlavu, s\u00e1hn\u011bte sp\u00ed\u0161e po <a href=\"\/p\/srouby-s-sestihrannou-hlavou-s-drazkou-din-933-a2\/\">\u0161roubu se \u0161estihrannou hlavou DIN 933<\/a>. Srovn\u00e1n\u00ed pohled\u016f na v\u00fdb\u011br hlavy a typu spoje najdete v na\u0161em rozcestn\u00edku <a href=\"\/blog\/produktova-srovnani\/\">produktov\u00fdch srovn\u00e1n\u00ed<\/a> a obecn\u00e9 principy materi\u00e1lov\u00e9 volby v pil\u00ed\u0159i <a href=\"\/blog\/normy-a-materialy\/\">normy a materi\u00e1ly<\/a>.<\/p>\n<h2>\u010cast\u00e9 dotazy<\/h2>\n<h3>K \u010demu slou\u017e\u00ed \u010dty\u0159hran pod hlavou vratov\u00e9ho \u0161roubu DIN 603?<\/h3>\n<p>\u010cty\u0159hrann\u00fd krk se p\u0159i dotahov\u00e1n\u00ed matice zalisuje do m\u011bk\u010d\u00edho materi\u00e1lu (typicky d\u0159eva) a zabr\u00e1n\u00ed prot\u00e1\u010den\u00ed \u0161roubu. Spoj tak lze dotahovat jednostrann\u011b kl\u00ed\u010dem na matici, ani\u017e byste museli p\u0159idr\u017eovat hlavu.<\/p>\n<h3>Jak\u00e9 rozm\u011bry pokr\u00fdv\u00e1 norma DIN 603?<\/h3>\n<p>Norma DIN 603 (ISO 8677, \u010cSN 021319) pokr\u00fdv\u00e1 metrick\u00e9 z\u00e1vity p\u0159ibli\u017en\u011b M5 a\u017e M20 v d\u00e9lk\u00e1ch zhruba od 16 do 200 mm. Konkr\u00e9tn\u00ed dostupnost d\u00e9lek z\u00e1vis\u00ed na materi\u00e1lu a jakosti.<\/p>\n<h3>V jak\u00fdch jakostech se vratov\u00e9 \u0161rouby DIN 603 dod\u00e1vaj\u00ed?<\/h3>\n<p>Vyr\u00e1b\u011bj\u00ed se v oceli (nap\u0159. t\u0159\u00edda pevnosti 4.6, 4.8, 6.8 nebo 8.8, obvykle pozinkovan\u00e9) a v nerezov\u00e9 oceli A2 a A4. A4 s molybdenem je vhodn\u00e1 do prost\u0159ed\u00ed s chloridy, nap\u0159. u baz\u00e9n\u016f \u010di v p\u0159\u00edmo\u0159\u00ed.<\/p>\n<h3>Jak\u00fd otvor p\u0159edvrtat pro vratov\u00fd \u0161roub?<\/h3>\n<p>Otvor volte podle pr\u016fm\u011bru d\u0159\u00edku \u0161roubu, nikoli podle \u010dty\u0159hranu. \u010cty\u0159hran se m\u00e1 teprve zalisovat do okraje otvoru; u tvrd\u00e9ho d\u0159eva otvor lehce zahlubte, aby hlava dosedla a krk se za\u0159\u00edzl.<\/p>\n<h3>Pot\u0159ebuje vratov\u00fd \u0161roub podlo\u017eku?<\/h3>\n<p>Podlo\u017eka se pou\u017e\u00edv\u00e1 na stran\u011b matice, proto\u017ee hlava dosed\u00e1 p\u0159\u00edmo na materi\u00e1l. Ploch\u00e1 podlo\u017eka rozlo\u017e\u00ed p\u0159\u00edtlak a zabr\u00e1n\u00ed zabo\u0159en\u00ed matice do d\u0159eva. Volte podlo\u017eku ze stejn\u00e9 jakosti jako \u0161roub.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DIN 603 vratov\u00fd \u0161roub: p\u016flkulat\u00e1 hlava, \u010dty\u0159hran pod hlavou proti prot\u00e1\u010den\u00ed, rozm\u011bry M5\u2013M20, jakosti 4.6\/8.8 i nerez A2\/A4, ISO 8677 a \u010cSN 021319.<\/p>\n","protected":false},"author":1,"featured_media":596,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_matai_meta_desc":"DIN 603 vratov\u00fd \u0161roub: p\u016flkulat\u00e1 hlava, \u010dty\u0159hran pod hlavou proti prot\u00e1\u010den\u00ed, rozm\u011bry M5\u2013M20, jakosti 4.6\/8.8 i nerez A2\/A4, ISO 8677 a \u010cSN 021319.","_matai_faq":"[{\"q\": \"K \u010demu slou\u017e\u00ed \u010dty\u0159hran pod hlavou vratov\u00e9ho \u0161roubu DIN 603?\", \"a\": \"\u010cty\u0159hrann\u00fd krk se p\u0159i dotahov\u00e1n\u00ed matice zalisuje do m\u011bk\u010d\u00edho materi\u00e1lu (typicky d\u0159eva) a zabr\u00e1n\u00ed prot\u00e1\u010den\u00ed \u0161roubu. Spoj tak lze dotahovat jednostrann\u011b kl\u00ed\u010dem na matici, ani\u017e byste museli p\u0159idr\u017eovat hlavu.\"}, {\"q\": \"Jak\u00e9 rozm\u011bry pokr\u00fdv\u00e1 norma DIN 603?\", \"a\": \"Norma DIN 603 (ISO 8677, \u010cSN 021319) pokr\u00fdv\u00e1 metrick\u00e9 z\u00e1vity p\u0159ibli\u017en\u011b M5 a\u017e M20 v d\u00e9lk\u00e1ch zhruba od 16 do 200 mm. Konkr\u00e9tn\u00ed dostupnost d\u00e9lek z\u00e1vis\u00ed na materi\u00e1lu a jakosti.\"}, {\"q\": \"V jak\u00fdch jakostech se vratov\u00e9 \u0161rouby DIN 603 dod\u00e1vaj\u00ed?\", \"a\": \"Vyr\u00e1b\u011bj\u00ed se v oceli (nap\u0159. t\u0159\u00edda pevnosti 4.6, 4.8, 6.8 nebo 8.8, obvykle pozinkovan\u00e9) a v nerezov\u00e9 oceli A2 a A4. A4 s molybdenem je vhodn\u00e1 do prost\u0159ed\u00ed s chloridy, nap\u0159. u baz\u00e9n\u016f \u010di v p\u0159\u00edmo\u0159\u00ed.\"}, {\"q\": \"Jak\u00fd otvor p\u0159edvrtat pro vratov\u00fd \u0161roub?\", \"a\": \"Otvor volte podle pr\u016fm\u011bru d\u0159\u00edku \u0161roubu, nikoli podle \u010dty\u0159hranu. \u010cty\u0159hran se m\u00e1 teprve zalisovat do okraje otvoru; u tvrd\u00e9ho d\u0159eva otvor lehce zahlubte, aby hlava dosedla a krk se za\u0159\u00edzl.\"}, {\"q\": \"Pot\u0159ebuje vratov\u00fd \u0161roub podlo\u017eku?\", \"a\": \"Podlo\u017eka se pou\u017e\u00edv\u00e1 na stran\u011b matice, proto\u017ee hlava dosed\u00e1 p\u0159\u00edmo na materi\u00e1l. Ploch\u00e1 podlo\u017eka rozlo\u017e\u00ed p\u0159\u00edtlak a zabr\u00e1n\u00ed zabo\u0159en\u00ed matice do d\u0159eva. Volte podlo\u017eku ze stejn\u00e9 jakosti jako \u0161roub.\"}]","_matai_schema_type":"TechArticle","footnotes":""},"categories":[2],"tags":[],"class_list":["post-55","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-normy-a-materialy"],"_links":{"self":[{"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/posts\/55","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/comments?post=55"}],"version-history":[{"count":1,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/posts\/55\/revisions"}],"predecessor-version":[{"id":65,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/posts\/55\/revisions\/65"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/media\/596"}],"wp:attachment":[{"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/media?parent=55"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/categories?post=55"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/tags?post=55"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}