Manufacturing screws and nails.
<video controls autoplay loop> <source src="https://s3-us-west-1.amazonaws.com/hmt-forum/how_nails_screws_made.mp4" type="video/mp4"> Your browser does not support the video tag. </video>
Previously:
https://www.homemadetools.net/forum/...484#post147063
https://www.homemadetools.net/forum/...013#post157043
https://www.homemadetools.net/forum/...548#post136090
https://www.homemadetools.net/forum/...3143#post98162
https://www.homemadetools.net/forum/...021#post125400
