Q: What Pitch size is on the threads? Richard Hobbs 06 November 2018 14:54 Follow A: The pitch on the 10mm entry is 1mm and the pitch on the 1/2" entry is 26TPI Related articles Q: What kit do i need? Q: Help With Replacement Lampholder on Metal Stem Q: What is 10mm or 1/2" entry mean? How to turn a metal item into a light fitting? Q: How to order more than 1 meter of cable? Comments 0 comments Please sign in to leave a comment.