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7SistersRanchTX 03-05-2012 08:24 PM

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?

jaydevries 03-05-2012 08:42 PM

why not buy it that way we do

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

7SistersRanchTX 03-05-2012 08:52 PM

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

jaydevries 03-05-2012 09:17 PM

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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