Woden jaw screws

[Agroshield]

All suggestions welcome, thanks.

I know you said you don't have a lathe, but do you have a welder? Strip the plating off the sample screw you have by leaving in acid overnight. Blob some weld onto the head so it is bigger than the pattern. Chuck up in a drill by the threaded end. File or angle grind the correct taper onto it. Cut slot with hacksaw.

 

[Hitch]

Probably a 60degree countersink, not as common as a 90degree one, but certainly available.... available in BSF though, is another matter mind.