Shimano Dura Ace 7710 chainring bolts
$ 30.00
Made of stainless steel with serrated nuts that set into the back of your crank arm holes and will stay put without needing to fuss with an annoying little chainring bolt spanner.
• set of 5 stainless steel bolts and knurled nuts
• 6mm length for use with most track cranks (but not Omniums)