This is a 6-32 <a href="https://en.wikipedia.org/wiki/Unified_Thread_Standard" class="extiw" title="en:Unified Thread Standard">Unified Thread Standard</a> <a href="https://en.wikipedia.org/wiki/Computer_case" class="extiw" title="en:Computer case">computer case</a> <a href="https://en.wikipedia.org/wiki/Screw" class="extiw" title="en:Screw">screw</a> accompanied by a ruler positioned to indicate its <a href="https://en.wikipedia.org/wiki/Screw_thread" class="extiw" title="en:Screw thread">thread pitch</a> (distance between its adjacent threads); its major thread diameter is 0.1380 inches with a pitch (distance between adjacent threads) of 1/32 inch. It is by far the most common screw found inside computer cases and commonly appears in lengths of 0.15 and 0.25 inch.
<a href="https://en.wikipedia.org/wiki/User:Diluvial" class="extiw" title="en:User:Diluvial">Diluvial</a>
2008-07-05
<span class="int-own-work" lang="en">Own work</span>