A single loose fastener can turn a smooth Yamaha run into an all-day rattle. Drop in Yamaha’s Bolt with Washer 90119-06027-00 and lock your hardware down the way the factory planned it. This short M6 stainless bolt with a captive flange washer is the go-to replacement for cowling brackets, anode plates, pump covers—anywhere vibration and salt team up to back ordinary screws out.

Why this OEM bolt earns a spot in your spares kit

• One-piece washer head spreads clamping load so soft aluminum castings don’t dimple or crack.

• Precisely rolled M6-1.0 threads bite cleanly and resist galling, even after seasons of saltwater exposure.

• Marine-grade stainless steel shrugs off corrosion; pulls free at next service instead of snapping flush.

• Low-profile 10 mm hex clears tight cowling recesses and lets you torque it with a standard socket—no specialty bits required.

Swap it during routine maintenance or stash two in the helm box for dock-side fixes. Ten seconds with a 10 mm wrench restores factory tightness, silences that mystery buzz, and keeps your Yamaha running quiet and true all the way back to the ramp.