Jimmy, go to any welding suppliers and get some stainless welding rods. 3.2mm/1/8" or 2.4mm/3/32" they come in 1 metre lengths. I used to pay 50p each then I found it was cheaper to buy them by the Kilo. Hope it helps, take care mate. Dave.
1/8 inch = 0.125 inches 3.2mm = 0.125984252 inches That 0.000984252" can mean you may have to open up the holes in the changer. My not be an issue on most guitars but is a bother on Sierra Session's. Of course totally irrelevant if your making your own guitar from scaratch...
Sierra Session S-12 (Black of course) Peavey Session 500 (split Cab)