Truth 40709 white nylon multipoint lock keeper used with Maxim Interlock roller system.
3 sets of mounting holes allow for adjustment 
Used by Weather Shield and many other window companies

Measurements:
Length: 1-3/4" (44.9mm) 1.767
Width: 5/8" (15.9mm) 0.626
Leg Length: 3/16" (4.7mm)
Overall Thickness: .371 inch (9.42mm)

Handed: Yes, Left & Right as Shown 
Material: Nylon (plastic ) 
Color: White 
Priced and sold each.

Markings: Manufacturer part number stamped may be stamped on back (underside)
The best way to determine which one you need is the number stamped on the bottom or leg length. 

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