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What is the part # of a mounting screw for a Powerpact H or J frame breaker rack-on bracket?

Product Line:
Circuit Breakers
PowerPact H and J

Electrical Distribution Equipment

The part number is 21590-20241.

It is a pan head steel thread forming trilobe screw with combination slot #3 square recess drive, ANSI specification SPECIFICATION: B18.6.4, size: 1/4-20, length : .75 +.00/-.03

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