<div id="heading"><h2 class="berschrift2"><a name="mod_1548256690924_0001"></a><a name="text_mod_1548256690924_0001"></a><a name="_Toc227140504"></a>Screw tightening torques</h2></div><p class="dlModulbegrenzung0"> </p><p class="HText">The tables show the specified values.</p><p class="HText">Knowledge of the applicable guidelines and design criteria is essential.</p><p class="dlModulbegrenzung0"> </p><div><table cellspacing="0" style="border-collapse:collapse;margin-left:-141.75pt;table-layout:fixed;width:459.25pt;"><colgroup><col style="width:141.75pt;"><col style="width:28.4pt;"><col style="width:289.1pt;"></colgroup><tr style="height:26.3pt;"><td style="padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="HMarginalie"> </p></td><td style="background-color:transparent;padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="Tabelleberschrift"><img alt="Grafik 18" height="22" src="images/image_3.png" width="3"></p></td><td style="background-color:#DDDDDD;padding:2.85pt 2.85pt 2.85pt 2.85pt;"><p class="HHinweisfett">NOTE</p><p class="HHinweisfett">Damage to materials caused by defective screw tightening torques!</p><p class="HHinweisListeQuadrat">To secure the product to the machine, pay attention to the values specified by HAINBUCH and by the machine manufacturer for screw tightening torques. If the machine manufacturer stipulates different values, you must consult HAINBUCH.</p></td></tr></table></div><p class="HTabellenende"> </p><p class="dlModulbegrenzung0"> </p><p class="HTextfett">Metric control threads<a name="_XE57"></a></p><p class="HText">The following table contains the guide values in Nm for screw tightening torques for achieving the highest permitted preload for metric control threads.</p><p class="dlModulbegrenzung0"> </p><ul class="hb-list hb-list--bullet hb-list--square"><li class="hb-list__item">Total friction coefficient</li></ul><div><table cellspacing="0" class="Tabellenraster" style="border-collapse:collapse;margin-left:0;table-layout:fixed;width:100.0%;"><colgroup><col style="width:162.45pt;"><col style="width:162.6pt;"><col style="width:162.6pt;"></colgroup><tr style="height:19.85pt;"><td rowspan="2" style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">Thread designation</p></td><td colspan="2" style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">Tightening torque at screw quality [Nm]</p></td></tr><tr style="height:19.85pt;"><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">10.9</p></td><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">12.9</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M4</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">4</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">5</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M5</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">7</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">9</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M6</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">12</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">15</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M8</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">25</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">38</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M10</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">50</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">70</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M12</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">100</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">130</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M16</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">220</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">300</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M20</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">400</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">550</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M24</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">600</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">800</p></td></tr></table></div><p class="HTabelle"><a name="_Toc227140572"></a>Table 15:    Screw tightening torques, metric control threads</p><p class="dlModulbegrenzung0"> </p><p class="HTextfett">Aluminum components<a name="_XE58"></a></p><p class="HText">The following table contains the reduced screw tightening torques for securing aluminum components.</p><p class="dlModulbegrenzung0"> </p><div><table cellspacing="0" class="Tabellenraster" style="border-collapse:collapse;margin-left:0;table-layout:fixed;width:100.0%;"><colgroup><col style="width:162.45pt;"><col style="width:162.6pt;"><col style="width:162.6pt;"></colgroup><tr style="height:19.85pt;"><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">Thread designation</p></td><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">Tightening torque [Nm]</p></td><td style="background-color:#D9D9D9;border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleKopfzeilezentriert">Minimum screw depth [mm]</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M6</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">10</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">12</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M8</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">23</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">16</p></td></tr><tr style="height:19.85pt;"><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">M10</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">46</p></td><td style="border-top:solid windowtext 1px;border-right:none;border-bottom:solid windowtext 1px;border-left:none;padding:2.85pt 2.85pt 2.85pt 2.85pt;vertical-align:middle;"><p class="HTabelleInhaltzentriert">20</p></td></tr></table></div><p class="HTabelle"><a name="_Toc227140573"></a>Table 16:    Screw tightening torques for aluminum components</p><p class="dlModulbegrenzung0"> </p>