I have a nice 4 cavity Lyman 358311 158gr RN mold that is my go to bullet for Cowboy Action Shooting. The prior owner of this mold did not loosen the set screw as he removed the sprue plate hinge pin screw and therefore the threads are stripped and the screw loosens as I cast and won't stay snug. I checked with Lyman and they no longer make/stock the screw which is a 3/4" long 1/4" wide with a 24 TPI thread. Nobody seems to make a 1/4" screw with a 24 TPI thread pitch. They are all 20 TPI or much finer. Is there anyone with spare parts to old rusty molds or do I just have to drill out the hole and rethread to a more common screw size? Will a WTB ad here help? I checked McMaster Carr & Granger and a local hardware store with a very wide selection of nuts/bolts/screws and no 24 TPI 1/4" bolts or screws.
Tye in Orygun