<story><title>Self-tightening nut that provides tight fastening with a unique screw thread</title><url>http://akihabaranews.com/2014/10/22/article-en/self-tightening-nut-provides-tight-fastening-aid-unique-screw-thread</url></story><parent_chain><item><author>roneesh</author><text>I&amp;#x27;m a former mechanical engineer specializing in fastening (now I&amp;#x27;m a Javascript developer).&lt;p&gt;It&amp;#x27;s certainly interesting that they&amp;#x27;re managing to keep the tightness up without resorting to any truly strange designs.&lt;p&gt;However as some have noted, cost will keep it from being adopted. Let&amp;#x27;s face it, fastening is the last thing considered in a project and the last thing bought. Even for large projects it&amp;#x27;s at most a few percent of budget and people are desperate to limit it&amp;#x27;s cost as much as possible.&lt;p&gt;Also, truly there&amp;#x27;s no need for a product like this unless the stress on the bolt, nut and what&amp;#x27;s being fastened have to be manage just perfectly. Otherwise the simplest solution to relaxation is just tightening more. Then it relaxes to an appropriate stress.&lt;p&gt;Almost all bolts in the world are under-tightened. Greater analysis of the joint you&amp;#x27;re tightening rather than a fancier nut will pay off many more dividends.&lt;p&gt;Let me clarify. I applaud the effort, fastening needs research and development badly, but this is no miracle nut, rather it&amp;#x27;s a specialized application.</text></item></parent_chain><comment><author>awkward</author><text>As a cyclist who does my own maintenance as a hobby, I am pretty willing to pay retail-type prices on exotic hardware that requires less effort on my part and is more reliable on the road.&lt;p&gt;Not the biggest market, sure, but it&amp;#x27;s a market where you could very plausibly sell a single fastener for ten-plus dollars with the right marketing.</text></comment>
<story><title>Self-tightening nut that provides tight fastening with a unique screw thread</title><url>http://akihabaranews.com/2014/10/22/article-en/self-tightening-nut-provides-tight-fastening-aid-unique-screw-thread</url></story><parent_chain><item><author>roneesh</author><text>I&amp;#x27;m a former mechanical engineer specializing in fastening (now I&amp;#x27;m a Javascript developer).&lt;p&gt;It&amp;#x27;s certainly interesting that they&amp;#x27;re managing to keep the tightness up without resorting to any truly strange designs.&lt;p&gt;However as some have noted, cost will keep it from being adopted. Let&amp;#x27;s face it, fastening is the last thing considered in a project and the last thing bought. Even for large projects it&amp;#x27;s at most a few percent of budget and people are desperate to limit it&amp;#x27;s cost as much as possible.&lt;p&gt;Also, truly there&amp;#x27;s no need for a product like this unless the stress on the bolt, nut and what&amp;#x27;s being fastened have to be manage just perfectly. Otherwise the simplest solution to relaxation is just tightening more. Then it relaxes to an appropriate stress.&lt;p&gt;Almost all bolts in the world are under-tightened. Greater analysis of the joint you&amp;#x27;re tightening rather than a fancier nut will pay off many more dividends.&lt;p&gt;Let me clarify. I applaud the effort, fastening needs research and development badly, but this is no miracle nut, rather it&amp;#x27;s a specialized application.</text></item></parent_chain><comment><author>tjradcliffe</author><text>I agree it&amp;#x27;s a little specialized and likely quite pricy, but as a sometime roboticist this kind of innovation makes me hopeful. Fasteners and connectors are unsolved problems, and robotics is plagued with such issues. Even an expensive solution for a few critical points would be valuable. Loc-tite works OK most of the time, but the ideal is a nut that actually stays tight all by itself.</text></comment>