8mm hex crank arm bolts
M8 x 20mm cro-mo steel crank arm fixing bolts with plastic dust shields.
These fit all square taper cranksets & bottom brackets using 8mm (M8x1mm) bolts.
ⓘ Put a drop of blue thread locker on the threads before installing to keep them from backing out on you and needing constant adjustment.
Specifications
• chrome plated steel
• thread length: 20mm
• sold in pairs
Recommended torque
Proper tightening is crucial to prevent the crank from loosening and damaging the crank arm.
The recommended torque spec for square taper crank bolts is generally 35-45 Nm (300–400 in-lbs) for most setups.
Tighten bolts in stages to 35-50 Nm, alternating sides, or until securely seated. Do not over-torque, as this can deform the crank/spindle interface.
Be sure to check the bolt tightness after the first few rides, as the arms will typically settle on the spindle and the bolts will require slight re-tightening.
Original: $6.99
-65%$6.99
$2.45
Description
M8 x 20mm cro-mo steel crank arm fixing bolts with plastic dust shields.
These fit all square taper cranksets & bottom brackets using 8mm (M8x1mm) bolts.
ⓘ Put a drop of blue thread locker on the threads before installing to keep them from backing out on you and needing constant adjustment.
Specifications
• chrome plated steel
• thread length: 20mm
• sold in pairs
Recommended torque
Proper tightening is crucial to prevent the crank from loosening and damaging the crank arm.
The recommended torque spec for square taper crank bolts is generally 35-45 Nm (300–400 in-lbs) for most setups.
Tighten bolts in stages to 35-50 Nm, alternating sides, or until securely seated. Do not over-torque, as this can deform the crank/spindle interface.
Be sure to check the bolt tightness after the first few rides, as the arms will typically settle on the spindle and the bolts will require slight re-tightening.
