Vent Lock with Arm

Awning and Jalousie window accessory.
Often used on Harcar brand windows.

Measurements:
6-1/2 inch metal arm
2-5/8 inch long by 1-13/16 inch wide plastic bracket
1/8 inch thick , 5/16 inch thick at nubs

Priced and sold as pairs

This product is similar to or the same as the following part numbers in these brands:
Strybuc Industries: 900-236