Bike Hex Crank Arm Bolts 8mm Allen Key Bolt Screws Capless Bottom Bracket Axle
Crank bolts to fit square tapered and standard bottom brackets No separate crank cap needed M8 (8mm)thread, thread 18mm long, 20mm dia. Bike Hex Crank Arm Bolts Spindle 8mm Allen Key 5.59 x 2.48 x 1.18″, 2 Pcs.