Two pieces of ZTTO bicycle aluminum alloy crank cover screws are designed for fixing crank covers on mountain bikes. They are compatible with M18, M19, and M20 crank covers.
Product type: Screws
Material: Aluminum alloy
Key feature: High strength, corrosion resistance
Color: Red
Intended use: Fixing crank
Compatibility: M18, M19, M20 crank covers
Suitable for Prowheel hollow one-piece discs; FS.A discs; old FC-4500 and FC 5600 road discs (M18)
Suitable for ZTTO, IXF and other brands of hollow one-piece discs (M19)
Suitable for Shimano sets such as M4000, M590, M596, M661, SLX, XT, XTR and other one-piece discs (M20)
Overall light and compact
High hardness
Easy to install
Spreads pressure and tightens nuts on parts, reducing damage risk
