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What set screw is needed for the AD or CO mortise or JD YA6 levers?

AD or CO mortise, cylindrical or exit lever set screws are removed or lost, replace with "Cup Tipped"  10-24  x 3/4 inch setscrews,  The socket end of the screw should have a medium (Serviceable )strength thread locker.
If original equipment set screws from allegion are used do not apply any added lock tight. the factory applied patch will be adequate. 

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