{"id":18,"date":"2026-05-20T11:52:00","date_gmt":"2026-05-20T09:52:00","guid":{"rendered":"https:\/\/www.matai.cz\/blog\/din-934-sestihranne-matice\/"},"modified":"2026-06-26T10:27:25","modified_gmt":"2026-06-26T08:27:25","slug":"din-934-sestihranne-matice","status":"publish","type":"post","link":"https:\/\/www.matai.cz\/blog\/din-934-sestihranne-matice\/","title":{"rendered":"\u0160estihrann\u00e9 matice DIN 934 \u2014 rozm\u011bry, materi\u00e1ly, pou\u017eit\u00ed"},"content":{"rendered":"<p>\u0160estihrann\u00e1 matice <strong>DIN 934<\/strong> je nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edm typem matice ve stroj\u00edrenstv\u00ed i \u00fadr\u017eb\u011b. Jde o plnou \u0161estihrannou matici se z\u00e1vitem ISO metrick\u00fdm, kterou najdete prakticky v ka\u017ed\u00e9m \u0161roubov\u00e9m spoji. V tomto \u010dl\u00e1nku najdete ov\u011b\u0159enou rozm\u011brovou tabulku, vysv\u011btlen\u00ed t\u0159\u00edd pevnosti, rozd\u00edl mezi nerezem A2\/A4 a ocel\u00ed a praktick\u00fd n\u00e1vod, jak DIN 934 kombinovat se \u0161rouby.<\/p>\n<h2>DIN 934 = ISO 4032: co to znamen\u00e1<\/h2>\n<p>Norma DIN 934 popisuje \u0161estihrann\u00e9 matice s metrick\u00fdm hrub\u00fdm (i jemn\u00fdm) z\u00e1vitem. Z hlediska rozm\u011br\u016f je DIN 934 prakticky shodn\u00e1 s mezin\u00e1rodn\u00ed normou <strong>ISO 4032<\/strong> \u2014 pro b\u011b\u017en\u00e9 velikosti M5 a v\u00fd\u0161e jsou kl\u00ed\u010dov\u00e9 rozm\u011bry (rozm\u011br p\u0159es plochy a v\u00fd\u0161ka matice) toto\u017en\u00e9. Drobn\u00e9 historick\u00e9 rozd\u00edly existovaly jen u nejmen\u0161\u00edch rozm\u011br\u016f, tak\u017ee pro praxi plat\u00ed, \u017ee matice DIN 934 a ISO 4032 jsou navz\u00e1jem zam\u011bniteln\u00e9.<\/p>\n<p>Vizu\u00e1ln\u011b lze matice odli\u0161it podle zna\u010den\u00ed: matice vyroben\u00e9 dle DIN b\u00fdvaj\u00ed u t\u0159\u00eddy pevnosti ozna\u010deny dv\u011bma svisl\u00fdmi \u010d\u00e1rkami po stran\u00e1ch \u010d\u00edsla t\u0159\u00eddy (nap\u0159. <code>|10|<\/code>), aby je bylo mo\u017en\u00e9 odli\u0161it od matic ISO se stejnou t\u0159\u00eddou.<\/p>\n<h2>Rozm\u011brov\u00e1 tabulka DIN 934 (ov\u011b\u0159en\u00e9 hodnoty)<\/h2>\n<p>Kl\u00ed\u010dov\u00e9 rozm\u011bry matice jsou rozm\u011br p\u0159es plochy <em>s<\/em> (ur\u010duje velikost kl\u00ed\u010de) a v\u00fd\u0161ka matice <em>m<\/em>. N\u00e1sleduj\u00edc\u00ed hodnoty odpov\u00eddaj\u00ed norm\u011b DIN 934 \/ ISO 4032 (maxim\u00e1ln\u00ed jmenovit\u00e9 hodnoty v mm):<\/p>\n<table>\n<thead>\n<tr>\n<th>Z\u00e1vit<\/th>\n<th>Stoup\u00e1n\u00ed (mm)<\/th>\n<th>Kl\u00ed\u010d \/ p\u0159es plochy s (mm)<\/th>\n<th>V\u00fd\u0161ka m (mm)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M6<\/td>\n<td>1,0<\/td>\n<td>10<\/td>\n<td>5,0<\/td>\n<\/tr>\n<tr>\n<td>M8<\/td>\n<td>1,25<\/td>\n<td>13<\/td>\n<td>6,5<\/td>\n<\/tr>\n<tr>\n<td>M10<\/td>\n<td>1,5<\/td>\n<td>17<\/td>\n<td>8,0<\/td>\n<\/tr>\n<tr>\n<td>M12<\/td>\n<td>1,75<\/td>\n<td>19<\/td>\n<td>10,0<\/td>\n<\/tr>\n<tr>\n<td>M16<\/td>\n<td>2,0<\/td>\n<td>24<\/td>\n<td>13,0<\/td>\n<\/tr>\n<tr>\n<td>M20<\/td>\n<td>2,5<\/td>\n<td>30<\/td>\n<td>16,0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Hodnota kl\u00ed\u010de (p\u0159es plochy) je d\u016fle\u017eit\u00e1 p\u0159i v\u00fdb\u011bru n\u00e1stroje \u2014 pro M8 pot\u0159ebujete kl\u00ed\u010d 13, pro M10 kl\u00ed\u010d 17 atd. V\u00fd\u0161ka matice odpov\u00edd\u00e1 d\u00e9lce za\u0161roubov\u00e1n\u00ed a t\u00edm i \u00fanosnosti spoje. U v\u00fd\u0161ky plat\u00ed, \u017ee \u010d\u00edm v\u011bt\u0161\u00ed je <em>m<\/em>, t\u00edm v\u00edce z\u00e1vit\u016f je v z\u00e1b\u011bru a t\u00edm vy\u0161\u0161\u00ed zat\u00ed\u017een\u00ed matice p\u0159enese, ani\u017e by hrozilo str\u017een\u00ed (smyk) z\u00e1vitu. Standardn\u00ed matice DIN 934 je proto navr\u017eena tak, aby pln\u011b vyu\u017eila pevnost odpov\u00eddaj\u00edc\u00edho \u0161roubu.<\/p>\n<p>Rozm\u011br p\u0159es rohy (e), kter\u00fd v tabulce neuv\u00e1d\u00edme, je v\u017edy v\u011bt\u0161\u00ed ne\u017e rozm\u011br p\u0159es plochy a je u\u017eite\u010dn\u00fd p\u0159i v\u00fdpo\u010dtu prostoru pro ot\u00e1\u010den\u00ed kl\u00ed\u010de. Pro praktickou mont\u00e1\u017e ale sta\u010d\u00ed zn\u00e1t rozm\u011br p\u0159es plochy (velikost kl\u00ed\u010de) a v\u00fd\u0161ku matice. Tlou\u0161\u0165ka st\u011bny matice okolo otvoru mus\u00ed b\u00fdt dostate\u010dn\u00e1, aby matice nepraskla p\u0159i dota\u017een\u00ed \u2014 i proto se v\u00fd\u0161ka a rozm\u011br p\u0159es plochy \u0161k\u00e1luj\u00ed spole\u010dn\u011b s rostouc\u00edm z\u00e1vitem.<\/p>\n<h2>Z\u00e1vit: hrub\u00fd vs jemn\u00fd<\/h2>\n<p>DIN 934 existuje v proveden\u00ed s metrick\u00fdm hrub\u00fdm z\u00e1vitem (nejb\u011b\u017en\u011bj\u0161\u00ed, v tabulce v\u00fd\u0161e) i s jemn\u00fdm z\u00e1vitem. Jemn\u00fd z\u00e1vit m\u00e1 men\u0161\u00ed stoup\u00e1n\u00ed, vy\u0161\u0161\u00ed samosvornost a o n\u011bco vy\u0161\u0161\u00ed nosn\u00fd pr\u016f\u0159ez, hod\u00ed se proto pro p\u0159esn\u00e9 se\u0159izov\u00e1n\u00ed a spoje vystaven\u00e9 vibrac\u00edm; je ale citliv\u011bj\u0161\u00ed na po\u0161kozen\u00ed a ne\u010distoty. Pro b\u011b\u017en\u00e9 pou\u017eit\u00ed volte hrub\u00fd z\u00e1vit \u2014 jemn\u00fd jen tam, kde to konstrukce vy\u017eaduje. V\u017edy mus\u00ed sed\u011bt stoup\u00e1n\u00ed matice i \u0161roubu.<\/p>\n<h2>T\u0159\u00eddy pevnosti a zna\u010den\u00ed<\/h2>\n<p>U ocelov\u00fdch matic se \u00fanosnost vyjad\u0159uje t\u0159\u00eddou pevnosti (nap\u0159. 6, 8, 10). \u010c\u00edslo t\u0159\u00eddy odpov\u00edd\u00e1 zhruba 1\/10 zaru\u010den\u00e9 nap\u011b\u0165ov\u00e9 \u00farovn\u011b v MPa, na kterou je matice zkou\u0161ena. Plat\u00ed jednoduch\u00e9 pravidlo: <strong>matice m\u00e1 b\u00fdt minim\u00e1ln\u011b stejn\u00e9 t\u0159\u00eddy jako \u0161roub<\/strong>, aby p\u0159i dota\u017een\u00ed selhal d\u0159\u00edve \u0161roub (ta\u017en\u011b, \u010diteln\u011b) ne\u017e matice (smykem z\u00e1vitu). V\u00edce o t\u0159\u00edd\u00e1ch pevnosti \u0161roub\u016f najdete v \u010dl\u00e1nku <a href=\"\/blog\/trida-pevnosti-8-8\/\">T\u0159\u00edda pevnosti 8.8 \u2014 co znamen\u00e1<\/a>.<\/p>\n<h2>Materi\u00e1ly: nerez A2\/A4 vs ocel<\/h2>\n<p>Matice DIN 934 se vyr\u00e1b\u011bj\u00ed jak z uhl\u00edkov\u00e9 oceli (\u010dasto pozinkovan\u00e9), tak z nerezov\u00e9 oceli. U nerezu se setk\u00e1te se dv\u011bma hlavn\u00edmi skupinami:<\/p>\n<ul>\n<li><strong>A2 (austenitick\u00e1 18-8, typ AISI 304)<\/strong> \u2014 b\u011b\u017en\u00e9 vnit\u0159n\u00ed i venkovn\u00ed pou\u017eit\u00ed bez agresivn\u00edho prost\u0159ed\u00ed.<\/li>\n<li><strong>A4 (austenitick\u00e1 s molybdenem, typ AISI 316)<\/strong> \u2014 vy\u0161\u0161\u00ed odolnost proti korozi, vhodn\u00e1 do prost\u0159ed\u00ed s chloridy (p\u0159\u00edmo\u0159\u00ed, baz\u00e9ny, posypov\u00e9 soli, chemie).<\/li>\n<\/ul>\n<p>U nerezov\u00fdch matic se pevnost zna\u010d\u00ed jako kombinace materi\u00e1lu a t\u0159\u00eddy, nap\u0159. <strong>A2-70<\/strong> nebo <strong>A4-80<\/strong> (\u010d\u00edslo odpov\u00edd\u00e1 1\/10 meze pevnosti v tahu v MPa \u2014 A2-70 = 700 MPa). Detailn\u00ed srovn\u00e1n\u00ed najdete v \u010dl\u00e1nku <a href=\"\/blog\/nerez-a2-vs-a4\/\">Nerez A2 vs A4<\/a>. Pro b\u011b\u017en\u00e9 nerezov\u00e9 spoje s\u00e1hn\u011bte po <a href=\"\/p\/matice-sestihranne-0-8-d-s-levym-zavitem-din-934-a2\/\">matic\u00edch DIN 934 A2\/A4<\/a>.<\/p>\n<p>Pozor na tzv. \u201ezad\u00edr\u00e1n\u00ed&#8220; (galling) u nerezu \u2014 p\u0159i rychl\u00e9m dotahov\u00e1n\u00ed se nerezov\u00fd z\u00e1vit m\u016f\u017ee za tepla zatavit a matice se \u201ezakousne&#8220; do \u0161roubu tak, \u017ee ji nelze povolit ani od\u0161roubovat. Austenitick\u00e9 nerezy A2 a A4 jsou na galling n\u00e1chyln\u011bj\u0161\u00ed ne\u017e uhl\u00edkov\u00e1 ocel, proto\u017ee nevytv\u00e1\u0159ej\u00ed tvrdou oxidickou vrstvu a maj\u00ed sklon k adhezi. Pom\u00e1h\u00e1 pomalej\u0161\u00ed a rovnom\u011brn\u00e9 utahov\u00e1n\u00ed (ide\u00e1ln\u011b momentov\u00fdm kl\u00ed\u010dem), \u010dist\u00e9 z\u00e1vity bez ne\u010distot a mont\u00e1\u017en\u00ed pasta nebo mazivo na b\u00e1zi MoS2 \u010di keramiky. D\u016fle\u017eit\u00e9 je tak\u00e9 to, \u017ee nerez m\u00e1 ni\u017e\u0161\u00ed pevnost ne\u017e ocelov\u00e9 matice t\u0159\u00edd 8 a 10 \u2014 pevnostn\u00ed t\u0159\u00eddu A2-70\/A4-80 je t\u0159eba zohlednit p\u0159i n\u00e1vrhu utahovac\u00edho momentu, nelze ji slep\u011b zam\u011bnit za ocelovou \u201edes\u00edtku&#8220;.<\/p>\n<h2>Kombinace se \u0161rouby DIN 933 a DIN 931<\/h2>\n<p>Matice DIN 934 je standardn\u00edm protikusem k \u0161estihrann\u00fdm \u0161roub\u016fm:<\/p>\n<ul>\n<li><strong>DIN 933<\/strong> \u2014 \u0161roub se z\u00e1vitem po cel\u00e9 d\u00e9lce d\u0159\u00edku.<\/li>\n<li><strong>DIN 931<\/strong> \u2014 \u0161roub s \u010d\u00e1ste\u010dn\u00fdm z\u00e1vitem (hladk\u00e1 \u010d\u00e1st d\u0159\u00edku pod hlavou).<\/li>\n<\/ul>\n<p>P\u0159i v\u00fdb\u011bru dbejte na shodu z\u00e1vitu (rozm\u011br i stoup\u00e1n\u00ed) a na shodu materi\u00e1lu \u2014 nerezovou matici A4 p\u00e1rujte s nerezov\u00fdm \u0161roubem A4, abyste p\u0159ede\u0161li kontaktn\u00ed (galvanick\u00e9) korozi. Rozd\u00edl mezi ob\u011bma \u0161rouby rozeb\u00edr\u00e1me v \u010dl\u00e1nku <a href=\"\/blog\/din-933-vs-din-931\/\">DIN 933 vs DIN 931<\/a>. Pod matici doporu\u010dujeme v\u017edy <a href=\"\/p\/podlozky-ploche-din-125a-a2\/\">plochou podlo\u017eku DIN 125<\/a> pro rozlo\u017een\u00ed tlaku.<\/p>\n<h2>Kdy DIN 934 nesta\u010d\u00ed<\/h2>\n<p>Klasick\u00e1 matice DIN 934 se za provozu s vibracemi m\u016f\u017ee povolit. V takov\u00e9m p\u0159\u00edpad\u011b je vhodn\u011bj\u0161\u00ed <a href=\"\/blog\/din-985-samojistne-matice\/\">samojistn\u00e1 matice DIN 985<\/a> s polyamidovou vlo\u017ekou, p\u0159\u00edpadn\u011b pru\u017en\u00e1 podlo\u017eka. P\u0159ehled materi\u00e1l\u016f a norem najdete tak\u00e9 v \u010dl\u00e1nku <a href=\"\/blog\/normy-a-materialy\/\">Normy a materi\u00e1ly<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0160estihrann\u00e9 matice DIN 934 (= ISO 4032): rozm\u011brov\u00e1 tabulka, kl\u00ed\u010d, v\u00fd\u0161ka, t\u0159\u00eddy pevnosti, nerez A2\/A4 vs ocel a kombinace se \u0161rouby DIN 933\/931.<\/p>\n","protected":false},"author":1,"featured_media":410,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_matai_meta_desc":"\u0160estihrann\u00e9 matice DIN 934 (= ISO 4032): rozm\u011brov\u00e1 tabulka, kl\u00ed\u010d, v\u00fd\u0161ka, t\u0159\u00eddy pevnosti, nerez A2\/A4 vs ocel a kombinace se \u0161rouby DIN 933\/931.","_matai_faq":"[{\"q\": \"Je matice DIN 934 tot\u00e9\u017e co ISO 4032?\", \"a\": \"Rozm\u011brov\u011b ano. DIN 934 je v praxi shodn\u00e1 s ISO 4032 a pro b\u011b\u017en\u00e9 velikosti M5 a v\u00fd\u0161e jsou kl\u00ed\u010dov\u00e9 rozm\u011bry (p\u0159es plochy a v\u00fd\u0161ka) toto\u017en\u00e9. Matice jsou tak navz\u00e1jem zam\u011bniteln\u00e9; li\u0161\u00ed se jen zna\u010den\u00ed t\u0159\u00eddy pevnosti.\"}, {\"q\": \"Jak\u00fd kl\u00ed\u010d pot\u0159ebuji na matici M10 DIN 934?\", \"a\": \"Pro matici M10 DIN 934 je rozm\u011br p\u0159es plochy 17 mm, tedy pot\u0159ebujete kl\u00ed\u010d velikosti 17. Pro M8 je to kl\u00ed\u010d 13, pro M12 kl\u00ed\u010d 19.\"}, {\"q\": \"Jak\u00fd je rozd\u00edl mezi matic\u00ed A2 a A4?\", \"a\": \"A2 (typ 304) je standardn\u00ed nerez pro b\u011b\u017en\u00e9 prost\u0159ed\u00ed, A4 (typ 316) obsahuje molybden a l\u00e9pe odol\u00e1v\u00e1 chlorid\u016fm \u2014 vhodn\u00e1 do p\u0159\u00edmo\u0159\u00ed, baz\u00e9n\u016f a chemicky agresivn\u00edho prost\u0159ed\u00ed.\"}, {\"q\": \"Mus\u00ed m\u00edt matice stejnou t\u0159\u00eddu pevnosti jako \u0161roub?\", \"a\": \"Matice by m\u011bla m\u00edt minim\u00e1ln\u011b stejnou nebo vy\u0161\u0161\u00ed t\u0159\u00eddu pevnosti ne\u017e \u0161roub. Pak p\u0159i p\u0159et\u00ed\u017een\u00ed sel\u017ee nejprve \u0161roub p\u0159edv\u00eddateln\u011b tahem, m\u00edsto nebezpe\u010dn\u00e9ho str\u017een\u00ed z\u00e1vitu matice.\"}]","_matai_schema_type":"TechArticle","footnotes":""},"categories":[2],"tags":[],"class_list":["post-18","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\/18","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=18"}],"version-history":[{"count":3,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/posts\/18\/revisions"}],"predecessor-version":[{"id":401,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/posts\/18\/revisions\/401"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/media\/410"}],"wp:attachment":[{"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/media?parent=18"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/categories?post=18"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.matai.cz\/blog\/wp-json\/wp\/v2\/tags?post=18"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}