2pcs ZTTO Bicycle Aluminum Alloy Crank Cover Mountain Bike Crank Screws, Style: M20 Black

Two pieces of aluminum alloy crank cover screws designed for mountain bikes. They are intended for fixing the crank and chain wheel.

• Product type: Screws
• Material: Aluminum alloy
• Color: Black
• Compatibility: Shimano M4000, M590, M596, M661, SLX, XT, XTR
• High strength and corrosion resistance
• Light and compact design
• Easy to install
• Spreads pressure and tightens nuts on parts
• Suitable for Prowheel hollow one-piece discs, FS.A discs, old FC-4500 and FC 5600 road discs with M18 thread screws
• Suitable for ZTTO, IXF and other brands of hollow one-piece discs with M19 thread screws
• Suitable for Shimano sets with M20 crank cover screws