Knurling some steel.
Turning down to one diameter.
Then to the screw diameter, and threaded with a die.
Undercutting the thread. I probably didn't need to do this but it's on the drawing...
Parted off.
Mounted on a mandrel and the end faced and chamfered.
Slotting a screw slot.
The drawing shows that it's a plunge in from center rather than a straight cut. Not that it matters.
The finished screw.
It mounts the sight bracket to the rifle.
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