On 19/02/2009 21:52, "Eric Scace K3NA" <e...@k3na.org> wrote:
>
> Mechanical engineers refer to the "turn of the screw" method for
> tightening. With a little practice one easily notices when the force
> required to turn the screwdriver further begins to ramp up more
> quickly. [This point is past "finger tight", which often doesn't
> compress the lockwasher very much (if at all).]
>
> When that ramp-up starts, go one-quarter turn further to reach the
> design load point.
>
> This also works on the big bolts used on bridges and other ironwork.
>
> on 09 Feb 19 15:20 K9ZTV said the following:
>> I was always taught the rule is . . . "finger-tight" not "wrist-tight."
>>
>> The two are distinctly different.
>>
>> 73,
>>
>> Kent K9ZTV
>>
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