Multi-Point Sash Lock - WHITE 
Used in Tie Bar Applications.
Non-Handed,Reversible, used for Left or Right handed windows.
3-7/8 inch Screw hole Spacing. 1-1/8 Hook Projection

Roto Hardware Reversible, non-handed multi point casement sash lock, used primarily with New construction and replacement vinyl windows.
Sash Lock Used in Tie Bar Applications where it locks window sash in more than one place.
Non-Handed, used for Left or Right handed windows.
Base measures: 3/4 x 4-9/16 inch
Screw hole Spacing: 3-7/8 inch
The fork extends 1-1/8 inches from housing; 1-3/8 from base
Color: White
Used by Great Lakes, Columbia and others
This can be replaced with new contoured style # 55659 Appliance White

NOTE: 

1.Uses 6 x 3/4 PH self tapping screw, If holes are not threaded

2. Replacement part number 55659 does not have threads and installation requires a self tapping screw.