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<title>Thread restorer</title>

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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Thread restorer</span></span>

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<p>A <b>thread restorer</b> is a <a href="Tool" title="Tool">tool</a> used to fix <a href="Screw_thread" title="Screw thread">threads</a> on <a href="Nut_(hardware)" title="Nut (hardware)">nuts</a> or <a href="Screw" title="Screw">bolts</a> that have become damaged. One type of thread restorer is a <b>thread restoring file</b> or <b>thread file</b>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> There are other types of thread restoring tools as well, for example a <b>chaser tap</b> or <b>chaser die</b>.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>

</p><p>Normal <a href="Tap_and_die" title="Tap and die">taps and dies</a> can also be used to clean up a thread, which is called <i>chasing</i>. However, using an ordinary tap or die to clean threads generally removes some material, which results in loose threads. Because of this, machinists generally clean threads with special taps and dies—called <b>chasers</b>—made for that purpose. Chasers are made of softer materials and don't cut new threads. However they still fit tighter than actual fasteners, and are fluted like regular taps and dies so debris can escape. <a href="Auto_mechanic" title="Auto mechanic">Car mechanics</a>, for example, use chasers on <a href="Spark_plug" title="Spark plug">spark plug</a> threads, to remove corrosion and carbon build-up.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>

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<ul><li><a href="Threaded_insert" title="Threaded insert">Threaded insert</a>, sometimes used for replacing damaged threads</li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

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</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20240715163854/https://threadingtoolsguide.com/en/blog/thread-file-clean-and-rework-threads-with-the-thread-file/">"Thread file - Clean and rework threads"</a>. <i>Threading tools guide | GSR Blog</i>. 2020-04-06. Archived from <a rel="nofollow" class="external text" href="https://threadingtoolsguide.com/en/blog/thread-file-clean-and-rework-threads-with-the-thread-file/">the original</a> on 15 July 2024<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-07-15</span></span>.</cite></span>

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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite id="CITEREFDan2018" class="citation web cs1">Dan (2018-08-16). <a rel="nofollow" class="external text" href="https://mechanicalmalarkey.com/2018/08/16/taps-dies-vs-thread-chasers-whats-the-difference/">"Taps & Dies vs. Thread Chasers: What's the Difference?"</a>. <i>Mechanical Malarkey</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20240715164357/https://mechanicalmalarkey.com/2018/08/16/taps-dies-vs-thread-chasers-whats-the-difference/">Archived</a> from the original on 15 July 2024<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-07-15</span></span>.</cite></span>

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<li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><cite id="CITEREFJoe2007" class="citation web cs1">Joe, Texas (2007-11-19). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20240715165108/https://www.webbikeworld.com/repair-threads-thread-file/">"Thread Repair With a Thread File"</a>. <i>webBikeWorld</i>. Archived from <a rel="nofollow" class="external text" href="https://www.webbikeworld.com/repair-threads-thread-file/">the original</a> on 15 July 2024<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-07-15</span></span>.</cite></span>

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</style><div id="Machine_and_metalworking_tools735" style="font-size:114%;margin:0 4em"><a href="Machine_tool" title="Machine tool">Machine</a> and <a href="Metalworking" title="Metalworking">metalworking</a> tools</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Arbor_press" title="Arbor press">Arbor press</a></li>

<li><a href="Automatic_lathe" title="Automatic lathe">Automatic lathe</a></li>

<li><a href="Ball-peen_hammer" title="Ball-peen hammer">Ball-peen hammer</a></li>

<li><a href="Broaching_(metalworking)" title="Broaching (metalworking)">Broach</a></li>

<li><a href="Drill_press" title="Drill press">Drill press</a></li>

<li><a href="English_wheel" title="English wheel">English wheel</a></li>

<li><a href="Gear_shaper" title="Gear shaper">Gear shaper</a></li>

<li><a href="Grinding_machine" title="Grinding machine">Grinding machine</a></li>

<li><a href="Hacksaw" title="Hacksaw">Hacksaw</a></li>

<li><a href="Jig_borer" title="Jig borer">Jig borer</a></li>

<li><a href="Lathe" title="Lathe">Lathe</a></li>

<li><a href="Machine_tool" title="Machine tool">Machine tool</a></li>

<li><a href="Metal_lathe" title="Metal lathe">Metal lathe</a></li>

<li><a href="Milling_cutter" title="Milling cutter">Milling cutter</a></li>

<li><a href="Oxy-fuel_welding_and_cutting" title="Oxy-fuel welding and cutting">Oxy-fuel cutting torch</a></li>

<li><a href="Planer_(metalworking)" title="Planer (metalworking)">Planer</a></li>

<li><a href="Plasma_cutting" title="Plasma cutting">Plasma cutter</a></li>

<li><a href="Rotary_transfer_machine" title="Rotary transfer machine">Rotary transfer machine</a></li>

<li><a href="Shaper" title="Shaper">Shaper</a></li>

<li><a href="Turret_lathe" title="Turret lathe">Turret lathe</a></li>

<li><a href="Welding" title="Welding">Welder</a></li></ul>

</div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><div class="hlist">

<dl><dt>Types of tools</dt>

<dd>Cleaning</dd>

<dd>Cutting and abrasive</dd>

<dd>Forestry</dd>

<dd>Garden</dd>

<dd>Kitchen</dd>

<dd>Machine and metalworking</dd>

<dd>Masonry</dd>

<dd>Measuring and alignment</dd>

<dd>Mining</dd>

<dd>Power</dd>

<dd>Textile</dd>

<dd>Woodworking</dd></dl>

</div></div></td></tr></tbody></table></div>

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This article is issued from <a class="external text" title="Last edited on 2024-07-29" href="https://en.wikipedia.org/wiki/?title=Thread_restorer&oldid=1237275156">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

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