[TR] nuts, bolts and lock washers

[FGFO1 at aol.com]

saw a picture of a bolted assembly today and had lots of thoughts.
when bolting 2 plates together, say the starter motor into my TR3. I have  
always used a bolt with flat washer, and on the other side a nut with lock  
washer. so I'm asking why not lock washer the bolt? sure the pressing of the  head 
left little interference tangs underneath it, but then I put a nice smooth  
washer between it and the plate. what stops the bolt from backing off?
again when bolting a plate to a blind taped hole, say the front fan of a  TR3 
to the fan hub. I use a bolt, through a lock washer, through a flat washer.  
what stops the flat washer turning?
iv always done things this way but just cant figure out why, and why have I  
never had a failure?
thanks
Frank Fisher
59 TR3



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