Bolt for bolt on breaker

[Ponchik]

The reconditioned breaker came with the wrong thread bolts/screws. So I I stalled regular 10-24 screw where the breaker meets the buss. (That is what I had and needed to turn the breaker back on)

I vaguely remember that these screens need to be stronger (grade 5) than regular hardware.

I am planning another shut down so I can change the screws.

Am I correct about the stronger (grade 5) screws?

 

[ActionDave]

I have nothing official to back me up but, I say there is no need for grade 5 screws.

 

[don_resqcapt19]

I don't recall ever seeing a bus screw that was 10-24....all I have worked on were 10-32. This is a case where I would probably try to find an OEM screw and not make a field substitution.