Hollow threaded rodsizes

I'm looking at using HY-270 to post install 3/4" dia threaded rods into the side of a multi-wythe brick wall. If I design the anchors assuming the wall is solid, the minimum edge distance is 8", which comes with a reduction factor of 0.5, and leads to a shear capacity of ~1000lbs/bolt. If I design the anchors assuming the wall is hollow, the minimum, and only edge distance listed is 4", and gives a shear capacity of ~1000lbs/bolt. Would it make sense to assume a hollow wall, design for ~1000lbs/bolt based on the 4" edge distance, and if the wall turns out to be solid, then my design should be conservative?

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hollow threaded rod3/8

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Hi Chris, For installations into the side of a hollow multi-wythe brick wall, Hilti only has testing for HIT-HY 270 with a 3/8" diameter threaded rod which can be found on page 190 of Hilti's Anchor Fastening Product Technical Guide. There is no testing for installations into the side of a solid multi-wythe brick wall or for another other size of threaded rod. The decision to use HIT-HY 270 outside of Hilti's testing would be up to the discretion of the Engineer of Record on the project. Regards,Ashley