Ask HiltiAskLearnArticles
Ask Hilti

Incorrect Holes

Posted by E_CEabout 6 years ago
Incorrect Holes

I would just like to ask the implication of having undersized hole. If we have N28 rebar but have installed diameter 32mm hole (hilti hole requirement for N28 is 35mm), would it be acceptable?

hole diameter,bolt

1 Reply
Posted by Bryan Johnsonabout 6 years ago
Hilti Verified

E_CE,

As seen from the product approvals, there is a specified drilled hole diameter that will be required for all Hilti anchors. If the hole size is smaller or larger than required, there could be adverse effects on the anchor capacity, and it would be up to the design engineer of record to evaluate and determine if the anchor system would still be applicable. In addition, it would be advisable to speak to your local Hilti representative for additional information.

Let us know if you have any additional questions.

Regards,

Bryan