Hex Crank Arm Fixing Bolts 8mm 18mm For Bicycle Square Hole Crankset Capless Bottom Bracket 2 Pack Easy Install No Hassle Fit For Most Mountain And Road Bikes Allen Key Not Included

2-Pack Hex Crank Arm Fixing Bolts for Square Cranks ✔️ 8mm hex head, 18mm thread, 20mm cap, black finish, 2 pcs

These hex crank arm fixing bolts are designed for square-hole cranksets and capless bottom brackets, providing a secure, easy install on most mountain and road bikes.

✅ Material: metal and plastic construction for durability
✅ Size details: overall height 26 mm (1.02 in), 8 mm thread length 18 mm (0.7 in), cap diameter 20 mm (0.78 in)
✅ Compatibility: fits square-hole cranksets and bottom brackets on most bikes
✅ Package: includes 2 hex crank arm fixing bolts in black

💡 What is a crank arm fixing bolt used for in bicycle square hole cranksets?

- It’s handy for securing the crank arm to the bottom bracket spindle, keeping it tight. - It helps maintain proper alignment and reduces play in the crank interface. - Use the correct 8 mm hex size for quick, no-hassle installation and reliable performance.