فولاذ

Swapped out the worn chainring hardware on my commuter and these feel noticeably sturdier than the originals. The steel bolts torqued down securely with no stripping, and they've stayed tight through a few hundred miles of rough pavement.

Swapped these onto my crankset after stripping the originals and they torqued down solid with zero play on the first ride. The steel feels noticeably beefier than the alloy bolts I had before.

These steel bolts feel noticeably sturdier than the aluminum ones I had before, and the chainring sits tight with no wobble. Only gripe is the heads are a bit shallow, so make sure your hex key is in good shape before torquing them down.