Joined: Jul 2015
Posts: 7,372
Likes: 3,218
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
lock washers work by DIGGING INTO the contact surface... they can and do ruin aluminum parts they get smashed into.
use the blue locktite..
bicycle disc brake rotor and mount screws come with blue on them.
another thing i've used in high vibration situations is Permatex2 gasket tar... it remains tarry and will hold a bolt/nut/screw in place until you want to remove it... but the removal is similar to red locktite... very slow and needs lots of force.
the radiator mounts, exhaust and engine mounts on my Super-Mod Odyssey ATV Demanded use of Permatex2.