Bolt and nut door lock.
<video controls autoplay loop style="max-width: 100%;">
<source src="https://diqn32j8nouaz.cloudfront.net/tooltalk_17609121423441.mp4" type="video/mp4">
Your browser does not support the video tag.
</video>
Previously:
Dinner fork door lock - GIF
Dual handle metal band door lock - GIF
Portable door lock - GIF
