APK05: Also available with dotted flat key cylinder. 
ATG05:   Also available with 90 degree rotated latch and high security socket wrench cylinder.
 APG05:  Also available with a 90 degree rotated latch and a flat point wrench cylinder.
 ITK05  : Also available with stainless steel latch and high security socket wrench cylinder.
 ITG05  : Also available with stainless steel latch, rotated 90 degrees and high security socket wrench cylinder.
 IPK05  : Also available with stainless steel latch and flat point key cylinder.
 IPG05  : Also available with a stainless steel latch, rotated 90 degrees, and a flat point wrench cylinder.   
Consult the documentation for more information.