Box One 7075 Alloy Chainring Bolts

Box One 7075 Alloy 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 those with threaded holes.

Includes:

• (5) 8.5mm front
• (5) 6.5mm front
• (5) 4mm rear

• 8.5mm/12mm Male Bolt
• 6.5mm/12mm  Male Bolt
• 4mm/12mm Female Bolt
• Thread Pitch M8x0.75p
• 5mm Allen Key
• Slotted Female Bolt