Jelwin double hung window retainer

A home owner from Rochester Hills, Michigan says:
I need four of these Jelwin double hung window retainers. They are a small die cast piece that screws on to the bottom of the double hung window to keep it up. It is 2 7/8 inches (72.8 mm) long, 5/16 inches (7.74 mm) wide and 3/16 inches (4.6 mm) thick and has two 7/64 (2.85 mm) diameter holes.
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Tom from SWISCO responded:

Hello! The part you're looking for is called a pivot bar. Yours in particular appears to match our 26-422 very closely in terms of both style and size. You should just make sure the hole positioning matches the dimensions we show on its store page to be 100% sure.

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