Hi,
Order the belt clip that goes on a Yaesu VX-7R (or FT-270 it's the same) it think it's part number "clip-14" (by memory, i can be wrong).
You'll find that the part that goes on a Yaesu radio fits the DJ-G7 almost perfectly (just need a little bit of shim with a washer or something similar). The screw is even the right diameter!
You'll discover a whole new DJ-G7 radio with that
73 ! De Sylvain, VE2LAM