FLANGE WAS WELDED IN PLACE,  THEN TURNED ON A LATHE.

NEED I SAY MORE?

AND WHAT THE HECK HAPPENED HERE???  DID THE DRILL PRESS GET AWAY FROM HIM?

THIS SHOWS THAT AN INSERT WAS WELDED IN PLACE,  THEN TAPPED.  THE END OF THE SNOUT WAS THEN GROUND FLAT...  SORTA.  NOTICE HOW 'NICE' THE THREADS ARE INSIDE.

THIS IS THE RETAINING BOLT,  USED IN ADDITION TO THE CAP SCREWS USED TO HOLD THE SMALLER FLANGE TO THE CAM GEAR.  CAP SCREWS NOT SHOWN,   BUT THEY TOO ARE A WORK OF 'ART'.

CLOSE-UP OF THE THREADS ON THE BOLT.  YUCK!

PROP FLANGE INSTALLED.