Sooo... I recently built a bike and installed a 90's Campy crankset. Unfortunately I didn't check the chain ring bolts and evidently they were just snug. About 10 miles into the first ride, I noticed they were loose. I got out a wrench to tighten them up and the hidden bolt is gone...


I didn't think this was such a big deal until I started looking to buy one:


Campagnolo Record Alloy Hidden Arm 5Th Chainring Bolt & Washer 10 Speed NOS





Yikes!


Does anyone have one of these that they could take measurements from so I can make one?


OR, even better, does anyone have one I could buy for about $10?