Rummaging through one of my electronic boxes, I found these M3 'standoffs' for mounting PCBs. There was an M3 x 0.6 die in my collection of oddball tools so I ran it down the thread of two of these. The result is not beautiful but there is enough thread to hold a plastic tail light in place.
![Image](https://farm5.staticflickr.com/4388/36817209655_a35a5b5f23_c.jpg)
I now had an adapter that I could screw into the JIS holes in the tail light. I bought some shorter screws from David Silver and they turned out to be ISO metric and stainless. I was able to lop around 10mm off these so that I could screw them into the adapters.
![Image](https://farm5.staticflickr.com/4423/36420364650_34824f606f_c.jpg)
With the gasket in place the rear light lens fits nicely and I feel happy in that I haven't had to butcher any priceless parts.... :-)
![Image](https://farm5.staticflickr.com/4412/36007892623_c37a595175_c.jpg)
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