Size specs:  -126HP frame (approx 647mm overall frame width) height 3U = 133.4mm, frame depth = 32mm

This frame is sent out with 60 x  M3 machine screws.  The M3 machine screws are suitable to use with threaded inserts in the frame.

(The photos shows the frames with sliding nuts, these will be removed and the threaded inserts fixed in their place)