illustraion hinge backset


 The Y latches listed below are adjustable to fit either a 2 3/8" or 2 3/4" backset. LATCHES WITH LOCKS  Description  Backset  Specify  Square corner, 1-1/8" x 2-1/4", standard  2...
 The latches for the Y and F lock are not interchangeable as the hole sizes are different. Substituting any latch voids your UL and product warranty. 
Hinge backset is the dimension from the leading edge of the hinge to either the stop on the frame or to the stop face (push side) of the door. For operating clearance, the hinge backset on the d...
Hospital latch available backsets:  2-3/4", 3-3/4", 5" or 7"
Hinge Spacing: All 4 1/2" and 5" butt hinge spacing 1. Opening heights 3'0" through 4'11 15/16" (one pair butt hinges) from under head CL 9 3/4" (top of door 9 5/8") from bottom of frame ...
Hinge Backset: On the frame = 5/16" On the door = 1/4"
Lock Spacing: All standard bored locks ANSI 115.2 (161, 61L type), for mortise lock ANSI 115.1 (86 type) all locations must be altered 3/8" lower, and standard strike (ASA type). 1. Opening ...
The backset is 2 3/4" from edge of door to the center line of the device and strike. The preparation for the WS98/99 strike must be specified when placing order for the frame.
This product is obsolete and no longer available.  At one time a 1 3/4" backset for the old B100/B400/B500 deadbolts was available.
The backset is the same for the 6300 surface mounted electric strike as it is when using the 299 strike.  There should be 3/16" from the face of the device and the face of the strike.