bp
<part15sbs{at}gmail{dot}com>

On 8/16/2018 2:43 PM, Sean Heskett wrote:

these are the bolts we use when anchoring to concrete:
https://www.hilti.com/anchor-fasteners/expansion-anchors/r2813

you can also use these if it's a smaller mount:

https://www.hilti.com/content/hilti/W1/US/en/services/fastners---firestop---strut/concrete-anchors/kwik-bolts.html

On Thu, Aug 16, 2018 at 2:51 PM, Colin Stanners <[email protected]> wrote:

So our amateur radio "Wi-Fi" (+similar protocols) group has gotten access to the roof of a large building where we plan to install mounts outside the walls of the concrete-walled elevator shack for our smaller antennas.

We have heavy-duty mounts - http://www.ventevinfra.com/shop/files/products/towers--site-hardwareb/mounting-solutions/Universal%20Wall%20Mount%20Series.pdf - and I've done this quite a bit at work for smaller antennas (1ft-2ft dishes). But at this site we have another ham group that wishes to install a massive antenna, a 20ft long vertical omni.

Does anyone know if having the above pair of mounts lag-bolted (2 inches deep?) into concrete is strong enough to guarantee no issues with that huge antenna, or would we need to drill through the concrete and put a plate on the other side instead?

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Re: [AFMUG] Mounting large antenna into concrete

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