The Impact CC-128 Double Super Clamp features two Super Clamps that are screwed together to form a 90 degree angle. The Double Clamp is handy when used in pairs for mounting a length of pipe or an Alu-Core to Varipoles, Autopoles or other uprights for use as a crossbar. The clamp is made of lightweight cast alloy and will mount to pipe or truss poles up to 2.1" in diameter.

Aluminum Construction    Grips up to 2.1" Diameter Poles

Related Questions and Answers

Q: 1. I like to use this for my canon 5D IV. Which ball head can i use? How attach ball head to it? Thanks!

A: You can use just about any ballhead you like. This short stud will allow you to mount the ballhead flush to the clamp https://bhpho.to/2WnlCbE.

Q: 2. WHAT ARE THE OUTSIDE DIMENSIONS ?

A: This Impact Super Clamp measures 1 5/8" wide by 4 7/8" long.

Q: 3. Can I screw a leofoto magic arm directly into the clamp?

A: Yes, it fits right in using either the 5/8" female receiver or it can be screwed into a 3/8 or 1/4-20" thread if your magic arm has those options.

Q: 4. Would I be able to screw a monopod into this? I'm trying to mount a mirrorless cam behind my monitor to use for streaming. So far I haven't found anything that allows me to clamp a mono or tri pod to my desk. Would this work?

A: I would highly advise against it. Your monopod would need to have a female 1/4"-20 thread, and even then with such a relatively weak connection, it would be highly unstable when your camera is mounted on the top of a monopod. I'd recommend a double-superclamp combo; one superclamp would grip the table (using the included flat-surface wedges) and the other superclamp would clamp onto the monopod half-way up the grip. https://www.bhphotovideo.com/c/product/838883-REG/impact_cc_128_double_super_clamp.html

Q: 5. May I know what the max opening is? I would use it on a 2 thick surface for my camera or recorder. Thanks!

A: Up to 2 3/4 inches

Q: 6. Can the clamps be set parallel? Or is the joining stud itself offset?

A: No. The clamps can not be turned. They are permanently attached and fixed in the orientation you see in the product photo.

Q: 7. I see that the accessory attachment point is 1/4-20. Would it be OK to drill and tap this bigger to 3/8-16 to accommodate my new Matthews magic arm? I don't want to ruin the structural integrity of the clamp.

A: You can purchase Manfrotto 036-38 Standard Stud with 3/8" Screw B&H # MA03638 replacement stud.

Q: 8. If the stud was oriented horizontally, parallel to a table, could the 1/4-20 screw end hold 5-10 lbs. without snapping off? If not, is there a stud like this made out of steel, like a QR plate's screw?

A: The 1/4" thread would not be stable for an item that weighs 5-10 lbs. If you prefer to use a quick release plate, the Manfrotto 323 RC2 System Quick Release Adapter with 200PL-14 Plate, BH # MA323 screwed into the Manfrotto 037 Reversible Short Stud, with 3/8" & 1/4"-20 Threads (Brass), BH # MA037 would be better. The Short Stud should have its 3/8" thread facing towards the bottom of the quick release.

Q: 9. I need to clamp this to a vertical varipole and have the stud also be vertical. Is there an alternative product that does this?

A: You could this clamp in conjunction with the extension arm, click the link below to view; https://bhpho.to/31W7tHI

Q: 10. What is the smallest diameter pole that will fit this clamp?

A: The smallest diameter which the CC-128 Double Super Clamp can attach to is 1/2 .