Screw Strength

May 18, 2004 1 Replies

Hi All,



Anyone know what is the tensile or pullout strength of a #8-32 screw used to secure fixtures to overhead outlet boxes? There are two screws holding the bracket to the outlet box. Is this size safe, or do I need #10-32? Is there a table of tensile strengths of screws available on the web?



Thanx, Keybored


The NEC says less than 50 lbs if it is a luminaire (light fixture). Fans need the stronger (10-32) box listed for the purpose.

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