Beefy M18 Crank Arm Bolt Aluminum Alloy For Bicycle Crank Arm Screws Fixing Bolt Mountain Bike Crank Cover Screws Cycling Part Black Precision CNC Machined Threads Rustproof Dustproof

M18 Aluminum Crank Arm Bolt for Bicycle CNC Machined
✔️ 18 mm diameter, 28 mm outer dia, aluminum 7075, CNC anodized

This M18 crank arm bolt is a precision CNC machined aluminum alloy fixing bolt designed to secure bicycle crank arms and keep water, dust, and elements out. It’s compatible with mountain and road bikes using FC-4500 and FC-5600 crank pairs, offering a rustproof, durable connection.

✅ Material: Aluminum alloy 7075
✅ Color: Black
✅ Diameter: 18 mm (0.7 in)
✅ Outer diameter: 28 mm (1.1 in)
✅ Process: CNC anodizing
✅ Applicable hex socket: 10 mm / 3/8 in
✅ Package: 1 x crank bolt
✅ Compatibility: FC-4500 and FC-5600 crank pairs
✅ Suit for M18 18 mm crank screw

💡 What is an M18 crank arm bolt used for in bicycles?

This handy fastener keeps the crank arm attached to the spindle and helps seal out water and dust. - Secures crank arms to spindle on most bikes using M18 bolts - Compatible with FC-4500 and FC-5600 crank pairs - Made from 7075 aluminum, rustproof and CNC anodized