RocRide Single Chainring Bolts in Aluminum or Steel. Pack of 5.

They work as intended. I can't comment on heavy use as they are on a kids bmx bike but they have held up well to changing the chainring multiple times.

Worked as expected and looks good on my bike

Great look nice fit

These are nicely finished chainring nuts and bolts.The nut sleeve length is 4.4mm, the bolt thread length is 7.9mm. My FSA chainring + Shimano Zee crank spider thickness was 6.3mm, so these worked well, the bolt is fully engaged and sits flush with the outer nut flange. I would have preferred a slightly longer nut sleeve length, but it engages the spider enough for a secure fit.Fully closed length measures 5mm, working length would be about 5mm to 7mm, with the bolt sitting flush with the end of the nut flange at 6.3mm, which happens to be the exact length needed for my bike.The nut flange is serrated, and it bit into the recessed fitting on the chainring enough to prevent any slipping when torquing to 10Nm. RocRide recommends 12Nm, but 10Nm is tight enough for me.Only potential issue are the two slots on the nut flange which are very shallow and poorly shaped for using a chainring nut tool. I was able to fasten these bolts without needing a nut tool, but if I ever need to disassemble these it’s likely it won’t be easy.I put a light coating of Phil Wood grease on the bolt threads, and made sure not to get any grease on the serrated nut flange, so it wouldn’t slip.These chainring bolts are inexpensive, finished well, and are a perfect fit for my 1x hybrid.Recommended, but took away one star for the poorly designed shallow slots on the nut flange.

I'm converting an old Masi to 1x chainring, these bolts fit the old Campagnolo Record crankset well.