Quote:
Originally Posted by Bryce2471
Thanks for the suggestions. I have a few questions about the PEM nuts.
If there is no flange, how does it hold the tension force from the bolt?
Where can they be sourced?/Do you have any suggestions?
what are the tolerances like on the press fit?
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The PEM inserts are pressed into the opposite side of the plate from the bolt, they have a flange but the flush ones are pressed into the material flush which cold forms the material into groves in the nut. They can be sourced from mcmaster here
http://www.mcmaster.com/#captive-nuts/=uy130o
GRT has used the standard ones in our GB for the past three years and the flush ones in the 2014 GB. You'll need a hydraulic press if the plates are anodized but if it's just raw aluminum an arbor press should do fine I think.
More info on flush ones here
http://www.pemnet.com/fastening_products/pdf/fdata.pdf
and a lot more info on their website
http://www.pemnet.com