2PCS Bottom Bracket Crank Arm Bolts Bicycle Bike Screws M8 18mm Long
M8 18mm Crank Arm Bottom Bracket Bolts - Set of 2. High-quality M8 crank arm bolts designed for square taper bottom bracket bikes. 2 × M8 18mm Crank Arm Bottom Bracket Bolts. Size: M8 (8mm x 18mm). Thread Length: 18mm.