Box One Cro-Mo chainring bolts 15pcs black
$15.99
Box One™ Chainring Bolt kits include five 8.5-mm front bolts, five 6-mm front bolts, and five 5-mm rear nuts so they will fit just about any chainring/crank combination, including chainrings and cranks with threaded holes.
SKUBX-CR14CMBLT-BK