<http://schema.org/description>
"The Light Source Purlin Clamp 1/2in Bolt [TLC PCM1/2] - Clamps &amp;amp; Safety Cables: The Purlin Clamp is perfect for installing almost anything to bar joists, purlins and I-beams up to 1&amp;quot; thick. A 1/2&amp;quot;-13 &amp;times; 2.5&amp;Prime; fully threaded square head set screw is provided for locking onto the structural member. A 1/2&amp;quot;-13 &amp;times; 1&amp;Prime; grade 5 Hex Head Bolt is supplied to connect"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.avshop.ca/lighting-amp-effects/clamps-amp-safety-cables/the-light-source-purlin-clamp-1-2in-bolt>