2pcs ZTTO Bicycle Aluminum Alloy Crank Cover Mountain Bike Crank Screws are designed for fixing crank and chain wheel components. They are compatible with various bicycle disc models.
Product type: Screws
Material: Aluminum alloy
Color: Black
Key feature: Corrosion resistance and durability
Compatibility: Prowheel hollow one-piece discs, FS.A discs, old FC-4500 and FC 5600 road discs, ZTTO, IXF, Shimano M4000, M590, M596, M661, SLX, XT, XTR
M18 thread screws are suitable for Prowheel hollow one-piece discs and FS.A discs
M19 thread screws are suitable for ZTTO, IXF and other brands of hollow one-piece discs
M20 crank cover screws are suitable for Shimano sets such as M4000, M590, M596, M661, SLX, XT, XTR
