and now for the nuts and bolts...

here is a pic of the screw holding the sporran to the leather. It is threaded like the one you have.




and here is a look into the hole which that hole passes through. The "nut" is still attached to the back of the sporran, and it appears to have actually broken off, and is not a traditional nut.



if you look at the pics of the cantle above, you will notice that the areas ( the five corners) do not have a raised bump like the rest of the edge of the cantle. It appears to me that the screw goes through the back of the sporran flap and screws into the cantle from behind.

In my opinion, the screw head broke off the screw holding your cantle on.

any one else have any ideas?