The Manfrotto 3/8" + 3/8" Adapter Spigot is a brass spigot with two 3/8" screws.

3/8" + 3/8" Brass Spigot

3/8" + 3/8" brass spigot adapter

Related Questions and Answers

Q: 1. What is the max diameter lens that will fit this gimbal mount?

A: Hi-the maximum diameter that will fit between the supports on this head is 5.5".

Q: 2. What are the 2 brass threaded parts for? I have the earlier model of this and it did not come with them...

A: The two brass threaded parts are for use within the 325N when a tripod ball head offers a different screw size when mounting a tie down.

Q: 3. Will this work with a feisol 3442 tripod ?

A: I use it with an Manfrotto/bogen 3258, Gitzo Cremalire 3 and a Gitzo monopod, so any support system that is stable, has a 2 inch base plate and can handle the weight of the camera, the lens and the Manfrotto 393 head, should be OK.

Q: 4. is this compatible with a slik pro 330dx-b tripod and a canon ef 100-400 mm lens? Thank you!

A: Should be 3/8 thread

Q: 5. Is the manfrotto gimbal head 393 compatible to use with manfrotto tripod 393?

A: The Manfrotto Heavy Telephoto Lens Support with Quick Release Adapter and Plate will mount on the Manfrotto 190go! Aluminum Tripod without issue. However, this is not an Arca Swiss plate. You could add this Sunwayfoto Arca & Manfrotto Compatible Clamp B&H # SUMAC14 to the quick release.

Q: 6. Trying to get my Manfrotto 526 head up onto my 3/8'' male slider connection. Is this a good piece for bridging the 2?

A: Since we have not tested this combination, we will offer the opinion that we do not see any reason it should not work.

Q: 7. What flashbracket is useable for this gimbal?Barbro Sweden

A: Most big lenses mount from a tripod collar on the lens itself, not the camera body, so you're still free to mount a flash bracket on the camera body if you want to. This mount is made for the heaviest of lenses and flash isn't often used with them because it won't reach as far as the lens. If you're using smaller lenses with a flash, a lighter tripod and mount will be much easier to use.

Q: 8. Is is compatible with MeFoto tripods?

A: I agree with Brian B.Good luck with your putchase.

Q: 9. Would this work with a Benro S8? I'm concerned about the length of the Benro's stem.

A: Well, I just bought this to use my Sachtler Ace head on a slider - won't work. The head stem is too short and won't mount on this. Sending it back. So, no, you can't assume it will work on every head.

Q: 10. Can this telephoto lens support be used with a black rapid strap attached to the camera foot or does it have to be taken off before attaching the camera to the lens support?

A: If you have black rapid strap attached to the camera and you need to attach the lens to this Telephoto Lens Support you don't need to remove the strap but if you have the strap attached to the Lens then you have to remove it