Modelled on the SMT1500RMI2U bracket, 870-6857A-002 JY-REV02.
This is not intended to be used to secure weight but mearly stop the UPS from sliding about on its rails and ensure it's located in the correct position.
Original screws: 8-32 x 3/8 UNC Countersunk screws
For strength reasons, i would recommend the following Print settings:
100% infill/equivalent perimeters
print vertically (as uploaded model).
support = on bed
brim = printer dependant, recommend on.
The author marked this model as their own original creation.