These include 21 standard M3 screws, eight M3 and four #6-32 shoulder screws (for installing drives onto the grommet-filled drive tray), and 12 extra-long #6-32 screws (for installing 120mm fans ...

The number for a screw tolerance must be a value from 3-9 for crest diameter and one of 4, 6, or 8 for pitch diameter. A tolerance "6g" specifies both pitch and crest diameter to be the same, but they ...

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