A hardware solution would be better. Bolts and blind nuts. Create small wood plates for the blind nuts and mount the to one side of the fuse. Secure aluminum or plastic tube screw guides in the other side of the fuse to support the bolts so that the foam does not crush.

This works best if you set up the hardware on the bolt side of the fuse first and screw on the nut plates to the bolts before securing the in the other side of the fuse. Add the proper glue to the nut plates. Hold the fuse haves together with tape while the glue dries. If the bolts end up in areas of the fuse that are solid foam, you can hollow out for the nut plates as needed.

A careful drop of oil on the threads of the bolts where they meet the nuts will prevent glue fouling the threads. I suggest using 3-4 each 4-40 bolts to hold the fuse together. If you use nylon bolts, I would use 6-32s.