This Captive T-Bolt is used to attach a camera to an Ultralight Control Systems TR-D tray for underwater photography. Offered here in a 2-pack, the 1/4"-20 bolt with 1/4" plastic washer goes through the hole in the tray and into the camera's tripod socket.

For Mounting Camera on Tray    Replacement or Spare

Related Questions and Answers

Q: 1. I have a Bolt Cyclone DR PP-400DR Dual Outlet Power Pack for my Lumix/Olympus camera...It looks like the power connection at the battery back would accept "my cable" in to the power unit and the connector for my GoDox 685 "O" would then be fine?

A: The Godox TT685O uses the same high voltage battery connector as Canon, so you can use the DR PP-400DR Dual Outlet Power Pack or this Bolt Universal Compact Battery Pack.

Q: 2. Can this be used on a Nikon SB800 flash?

A: Yes. The following unit will accept power packs.

Q: 3. How wide is the screw head?

A: The screw head is 11mm.

Q: 4. What is the length of the shaft?

A: The thread is 1/4"-20 and the length of the screw is 1/2"

Q: 5. Will this screw fit the small hole on the base of the BENRO PC-0 clamp? There are two SMALL holes on the base and I need such a screw for one of those holes

A: Unfortunately we cannot test these items. The Benro PC-0 is discontinued and the screw is a special-order item. It would be our best guess that the sockets underneath the pan head would be the same and it would be compatible with this screw, but you should contact the original manufacturer to get the exact measurements and specifications.

Q: 6. Does this pack work with Quantum and Godox cables for Canon and Nikon flashes? I have the Metz 58 AF 2 and no Bolt cable is offered , but will the Godox 58 cable or the Quantum CM-58 work with this pack?

A: The Bolt Universal Compact Battery Pack would not be compatible for use with Godox or Quantum Instruments power cables. It would only be compatible for use with the dedicated Bolt UN Power Cords listed under the Accessories tab on our website.

Q: 7. 1/4"-20 RRS screw?

A: This should work with any RRS lens plate. If you have further questions, please write us. prophoto@bhphoto.com.

Q: 8. what is the material and finish on the bolts?

A: As per the Manufacturer, these rack screws are steel with plastic washers with a black finish.

Q: 9. Will this work with Nikon D610 and Godoy TT600 flash?

A: Yes, the Bolt Universal Compact Battery Pack can work with the Godox TT600 while mounted on the Nikon D610. To connect the battery, you will need the Bolt CZ2 HV Locking Flash Power Cable for Select Canon Flash Units, BH # BOCZ2 https://bhpho.to/3nLFiEf

Q: 10. Is it compatible with the Canon Macro Twin Lite MT-26EX-RT (successor to the 24EX)?

A: Yes, the Bolt Universal Compact Battery Pack for Canon, B&H # BOCBPUCPCK, should also be compatible for use with the Canon MT-26EX-RT Macro Twin Lite.