A home owner from Burlington, Ontario, Canada says:
September 16, 2017
Right and left tilt window latches.
Number on rear 11148 R (assume this means right)
Pat# 4,801,475
2 1/8 inch hole spacing
3 1/8 inch Length
1 3/8 inch width
Paul from SWISCO responded:
September 19, 2017
Hey there! The top tilt latches you need are our 26-120 and 26-121. Please note the screw ways are not embossed (extended from the latch ). They are flush to the latch. That shouldn't be a problem.