D Cell Blank with Wiring

I designed this thing to help convert a battery-powered device to mains power. This design allows you to connect wiring to a d-cell shaped blank. Print as many d-cells as you need to replace batteries.
The blank has small holes in the sides to accept bare wiring. It also has a hole through the long axis and countersinks top and bottom into which you can insert a screw. The screw performs two functions: It provides an electrical contact for the replacement battery and it also secures the bar