Quote:
Originally Posted by rnln
umm... isn't that depend on how wide the hole you drilled? Sometimes it is just a tiny bit wider, or not straight right?
|
No.
When you drive the drop-in anchor to the concrete, you drive it in below the concrete surface by about 5/8" below with the setting tool and tighten it until it grabs the concrete. Then I turn the bolt by 2-1/2 turns until I feel the tightening resistance. If it does not tighten in 2-1/2 turns, the anchor is not grabbing the concrete, and the concrete quality is suspect. With a torque wrench, I was able to achieve about 80 ft-lbs with the top of the anchor still about 1/8" below the concrete surface. When I installed the MAXJAX, I was able to torque the bolt to 90 ft-lbs and the anchor was still below the concrete. Then I was sure the anchors are set correctly and will not pull.
You don't want the top of the anchor to reach the top of the concrete because it will just hit the MAXJAX base plate from underneath and easily get 100-ft-lbs of torque because the top of the anchor is hitting the metal base plate and will give you a false torque reading.
