Review on Set Of 5 Chainring Bolts And Nuts In Different Sizes For Single, Double And Triple Chainrings By Juscycling by Yuri Rochelin

These are chromed carbon steel. Attracted by a magnet. Able to rust. I ground them to 8.9 mm of 10 mm diameter shank (they start out at 10.8 mm) so I could go through a middle ring, 2 mm of spacers, the crank spider, and the outer ring and still have the outer ring catch on the protruding 10 mm nut. Seeing as they are carbon steel, I painted the ends with a metal-compatible primer/paint spray. I drilled five 25/64" holes in a piece of 1/4" plywood, pushed the shortened nuts through, and sprayed just the protruding ground-off ends. My original bolts with the nice maker's name stamped into them were long enough to engage the new nuts with more than 5 threads, so I re-used the old bolts.