Back
to Back Mounting, Pulls
Back
to back mounting is used when you want two pieces of hardware
literally "back to back." This mounting is more
commonly used with pulls than knobs.

Back to back mounting on glass

Back
to back mounting on non-glass
Back
to Back Mounting, Knobs
"Back to back" mounting for knobs is usually
a very simple matter if the knob has no geometric orientation.
That is, it doesnt matter which direction the knobs
is facing once the mounting is completed.
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With
orientation
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Without
orientation
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When
the knobs have no orientation, a BxB mounting
is accomplished through the use of a piece of
threaded rod which acts as a headless screw.

If
the knob does have an "orientation,"
then bxb mounting for pulls are used (see pulls
above).
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