Posted Apr 11, 2017, 4:46 PM
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Registered User
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Join Date: Jun 2006
Location: Portland, OR
Posts: 354
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Quote:
Originally Posted by mmeade
The blue things are threaded to hold a threaded rod that can be screwed in later. These can be to support pipes hanging below, or sometimes temporary fall protection.
In a Post Tensioned slab it is difficult to fasten anything deeper than 3/4" into the slab, so larger mounts are prepared in advance.
https://www.isatsb.com/blue-banger-hanger-pip.php
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Makes perfect sense.. thanks for solving that mystery for me!
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