What is the thread size of the threaded rod on the Spyder Shelf? Boris Bergmann July 28, 2021 12:34 The Spyder Shelf comes with a standard 1/4"-20 UNC tripod mount. Related articles I have been using Spyder5ELITE / Spyder X Elite to calibrate my monitors, and now want to calibrate my projector with it as well. What do I need to know for this new process? How to use Spyder Shelf with Spyder X and other Spyder products? What is the weight capacity of the Spyder Shelf? Settings What does calibrate mean?