A missing or rusted fastener might feel minor-until a vibrating bracket reminds you otherwise. Swap in Yamaha's 97085-06010-00 OEM bolt and lock everything down the way the factory intended. This little workhorse is an M6 × 10 mm hex-head flange bolt, perfect for cowling hinges, trim-tab brackets, fuel-pump covers and dozens of other spots where Yamaha engineers call for a short, tough fastener that won't shake loose in chop.. Why this exact bolt matters. Integrated flange head spreads load evenly, protecting paint and soft aluminum castings.. Metric M6-1.0 threads roll true for a snug, gall-free fit every time you torque it.. Marine-grade zinc plating fights salt spray and electrolysis far better than hardware-store steel.. Low-profile 10 mm shank clears tight spaces under the cowling without interfering with harness runs.. Drop it in during routine service or keep a couple in the glove box for dock-side fixes. Ten seconds with a 10 mm socket restores factory clamping force, silences