NO!

Definitely not the split-type spring steel washers. They spread out under load, and can seriously affect torque values. Some main bearing bolts/studs use hardened steel flat washers between the cap and the bolt head or nut, but a properly-torqued bolt of any sort does not need any help from a lockwasher.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!