Prime-Line C 1041 Keyed Sliding Door Outside Pull, Diecast Construction, Black, 3-15/16 in. & 4-15/16 in., Pack of 1 The 4-15/16in. hole pattern is offset 1/8in. from center line to work with Adams Rite W&F and similar type mortise latches The 3-15/16in. hole centers work with other universal type door handles Provides better grip for opening the door from the outside Lock tailpiece designed with "break-offs" for different door thickness May be used as a left or right hand