Pulls and Grips are utilized when there is no functioning latch. This occurs when a clasp or slide bolt is found on the inside. Often for privacy or security concerns, it eliminates access from the approach altogether. It can also be configured as in a few of the below examples where the pull is mounted to an escutcheon that includes a dead bolt. A final example is when there is electronic access, such as the Magnal Lock, that releases on a key code and reduces the need for a standard latch while leaving the requirement for a simple pull handle or grip.
Back-to-Back mounting is illustrated in the sketch below.