In article ,
"Nonny" wrote:

FWIW, my neighbor asked me and another neighbor to hang her new
LCD TV set, using an arm bracket. Without going into detail, we
needed (4) 1/4" X 6" lags to get the job done really solid. I
sized the pilot hole myself, using the MK22 eyeball device in my
head, and by the way, the hole was drilled with a 5" long bit.

2 of the blasted things torqued off, meaning that we had to adjust
the height of the bracket to remount it. They are a POS and it'll
be a cold day in Hades before I use anything like that in a
project.

Let's see, you used a 5" long drill for a 6" long bolt. (How much of the
drill was in the chuck, BTW?) And I don't see any mention of a larger
counterbore for the unthreaded portion. But I'm sure you saved face with
the neighbor by blaming the hardware.