Question: Can i use on tripod directly?
Answer: Hi yes there's 1/4" screw hole on bottom, and since the quick release mount comes with arca swiss slot, you can use on 1/4" tripod or tripod with arca swiss plate.
Question: Can the quick release plate kit be detached from ball head?
Answer: Yes
Question: Can you mount any camera to this? I don't know a lot about photography. looking to use this for a sony ev-10.
Answer: Yes. You can mount your Sony EV-10 to this. it is small, compact and light weight with a quick release plate that screws onto your camera. I use it on a heavier Canon full frame camera when using a compact tripod and it works fine.
Question: Can I use this on a GoPro?
Answer: Yes, but it would need 1/4" convert to gopro adapter to use on GoPro. The adapter is not included.
Question: What is the exact screw size? A 1/4 inch what? 1/4-20? How many threads per inch? I need this screw to thread into a blind nut so need the size thread
Answer:The thread size is 1/4-20, which means 20 threads per inch.