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Old 03-05-2012, 09:24 PM   #1
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Double Up Unistrut/Superstrut


I'm using Unistrut/Superstrut and need to double up. I plan on joining the backs to create the rails on both sides. What is the best bolt size to join the two together? Should I use the 1/2 or 3/8 bolts? Do I use regular washers or the special square ones? How long should they be?

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Old 03-05-2012, 09:42 PM   #2
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Double Up Unistrut/Superstrut


why not buy it that way we do

http://www.unistrut.us/index.php?WP=show&GRP=a_series


depends on size of unistrut i like to use the channel nuts hard to get wrench into channel

http://www.unistrut.us/index.php?WP=...in.%20Hardware

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Old 03-05-2012, 09:52 PM   #3
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Double Up Unistrut/Superstrut


I only have access to the single channels. I want to bolt together to look like A1001. The struts I have, have holes in the back wall. Will the Channel nuts twist since they won't contact anything accept the smooth surface? Would I use the 3/8 or 1/2 size bolts
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Old 03-05-2012, 10:17 PM   #4
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Double Up Unistrut/Superstrut


i can not remember if they free spin i am thanking they did not i know i have done this before though and if structure is not an issue i would use the 3/8 easier to get socket in there to tighten
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