Wolf Tooth Chainring bolts use a large hex socket on both the bolt (5 mm) and the nut (6 mm). Bolts are 6 mm or 10mm long and have the length laser engraved on the head.
These work great with Wolf Tooth or any other brand single chainrings.

• Designed and manufactured in the USA from 7075-T6 aluminum alloy.
• 6mm size sold as a set of 4 bolts+nuts for MTB cranks
• 10mm size is sold as a set of 4 bolts only (no nuts) for threaded 104 x 30T chainring
• 6mm product weight: 4 bolts = 7g
• 10mm product weight – 4 bolts = 4g