For attaching cameras or other gear tool-free, CAMVATE offers this 1/4"-20 Slotted D-Ring Captive Mounting Screw for use with most cages, cheese plates, and other supports. It can be secured by hand using the D-ring, but it also features a slotted flat head so you can secure it with flat head screwdrivers or most coins. From below the flat head, it measures 0.47" / 12mm.

Slotted Flat Head with D-Ring    0.47"/12mm Length from Below the Head

Related Questions and Answers

Q: 1. Does the D-ring lock to one side so that it doesn't swing down and get in the way when you're trying to seat the plate in the head of the tripod?

A: The ring will stay in place as it is tight enough so that it doesn't jiggle around.

Q: 2. Can I use this D ring on a Induro PU-50 Slide-In Quick Release Plate for B-00 & B-0 Ballheads?

A: Yes it'll work fine on a PU-50.

Q: 3. Is this stainless steel?

A: If I'm not mistaken this screw is nickle plated -- maybe chrome but more likely nickle.

Q: 4. 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: 5. Will this screw fit the sliding plate for a Libec H70 head? I need to attach a Panasonic P2 HD AG-HPX170P to it. The Panasonic manual says the P2 requires a 1/4-20 UNC screw. The mounting hole is 5.5 mm deep.

A: For the Libec H70 Fluid Head we recommend the Miller 1/4"-20 Screw for Miller Quick Release Plates BH #MI036 • MFR #036.

Q: 6. Can this attach correctly to : Benro IN00 Single Action Ball Head with out damage?

A: This item is designed for quick release plates; it would not be compatible with the ball head itself.

Q: 7. Is there enough room to use this with a BlackRapid strap and is it strong enough? Would BlackRapid's FastnerT-1 work with Oben QR plates?

A: The space in the ring of the 1/4 -20 Screw with D-Ring for QR Plates is NOT large enough for my BlackRapid strap clamp. I am considering replacing the plate I use this, with a plate that has an extended feature specifically to use the strap without removing the tripod plate.I do not know about the T-1 (don't have/have not used)

Q: 8. 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: 9. Can I use this with the OBEN QR 10 plate?

A: Don't know since I don't have the OBEN QR plate. It fits on an old Manfroto plate, but not on the Markins plates I currently use. Sorry I couldn't help.

Q: 10. Will this screw fit the QR plate of the Manfrotto 410 head? If not, is there a D-RIng type screw that will fit it?

A: You will want the proprietary Manfrotto 1/4 screws.