Nord-Lock washers

[ke6dcj]

Anyone successfully used these washers that make any nut-bolt combo, self-locking:

http://www.nordlock.com/default.asp?url=2.16.37

http://www.youtube.com/watch?v=mgwmuZuJ02I

I was thinking in some suspension areas and possibly the head-gasket bolts.

Comments, caveats, etc. ?

:-) neil

[workerunit]

Head bolts will only loosen in use by stretching, not torsion. Those washers would likely adversely effect getting a correct torque reading while torquing bolts.