Thanks for the reply all. I typically specify Powers Wedge Bolts but occasionally I will run into a consultant review comment that takes issue with them. I think this may be due to the fact that some of the smaller sizes, say 3/16”, of the previous versions of threaded concrete anchors might...
1/4"-20 Elco Dril-Flex fasteners are able to self-drill self-tap in 0.312" thick steel. ICBO report #4780 gives the allowable values and is available at iccsafe.org. The above fastener has a Grade-5 shank.
Members,
I wanted to see if anyone knows of a substantive difference with regards to long term “relaxation” of the two common mechanical concrete anchors on the market. Mechanical concrete expansion anchors can of course employ either a mechanically expanded wedge at the tip or a large thread to...
