Wow - that was someone thinking outside the box that invented this.  Yes, Jeff, I agree.  Watching the video, it appears they hold drive device in both positions.

My two concerns are:
1.   "How tight did I get it?"  I often find myself following up an assembly with a hand tool, wrench or screwdriver, just to be sure that everything is snugged down tight.  How do we know how tight the "screw action" got? 
2.  If, by chance, over a period of time, the screw has had pressure applied to the threads and the "driver mechanism" is unable to make the screw un-screw, you are "screwed" - you'll have to resort to destructive measures; getting a big pair of ViseGrips or an impact driver is not an option.

Its my guess that the best "application" for this mechanism is for light duty assembly - like small Ikea-type book shelves and cabinets - NOT college dorm beds!  LoL :-)

That's my 2 cents.
Mac


-----Original Message-----
From: Jeff Becker
Sent: Jun 3, 2013 10:32 AM
To: legacy-ornamental-mills@googlegroups.com
Subject: New type of screw

Has anyone seen or used this type of screw?    http://www.dump.com/invisiblescrew/

 

By the looks of the video I would think you can tighten or loosen the screws by holding the attachment on either end or beside the insert.

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