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Dillon trim dies

What is the thread size on the top side of the trim dies

RT 1200/ RT 1500 Upper Die Lock Ring

Stock Number: 13559

Specifications

This is the 13/16-20 Custom thread upper die lock ring for the Dillon RT 1200/RT 1500 case trim die. This lock ring is not included with individual trim dies.

Same thread (13/16 x 20) as a common automotive/light trailer spindle nut (such as a Dorman 615-074). The spindle nuts ARE thicker than the Dillon nuts - but this allows you to drill & tap it for a setscrew that allows you to lock the nut in place on the trimmer die, which lets you move the trimmer motor from one toolhead to another without losing the adjustment.

Where can I get someone to drill and tap a set screw for one?

randymaudlin - it's a pretty simple operation, can easily be done with a drill press and a hand tap. If this forum had a PM system - I'd ask for your address and just send you one 🙂

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