The Kirk 1/4"-20 x 1/2" Captive Screw for Lens Plates is a replacement for the one that comes with KES 1/4" and KLP threaded lens plates. The thread is 1/4"-20 and the length of the screw is 1/2". A 5/32" Allen wrench is included for installation.

Replacement Part    Stainless-Steel Construction    Includes 5/32" Allen Wrench

Related Questions and Answers

Q: 1. Can this screw be used for the Benro ball heads. And, for all the OBEN ball and tripod heads? How about MEFOTO?. This seems to be a great product.

A: Yes, It's a standard size and will fit the QR attachment plates. Those plates should fit almost all ball heads except for Manfrotto and RRS (Really Right Stuff) which has their own size of plates which might require something else although it might fit them also. However, the 1/4 -20 is standard for a ton of things.

Q: 2. How wide is the screw head?

A: The screw head is 11mm.

Q: 3. Hi All, Can anyone help me. I was wondering if anyone has used this with the MeFOTO PMU50 Quick-Release Plate? Will it work?

A: I bought these because the plates i bought didnt have the fold out ring to grasp to undo. These u dont need a penny to tighten or undo. For me its a no brainer. Extra cost but to me worth it.

Q: 4. Does the d-ring stay put once you move it down to the side, or is it loose where it flops around?

A: Yes it will stay put. It does not flop around.

Q: 5. I wish to purchase a Sirui G-10X Ball Head and replace the screw with this one. Do I use this one or the QR version?

A: First, this is a very professional and high quality! The D ring is also a great plus. I replaced all my plates with this and other better quality screws. The screws that come along the plates are so cheap.

Q: 6. 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: 7. Is this stainless steel?

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

Q: 8. Could this be used possibly with an arca-swiss plate?

A: No, that will not work with most Arca-Swiss style plates. Most Arca plates are too thin. It can work with, any of the Oben RP quick-release plates except the RP5. It can also be used with any of the Induro PH and PU series plates or Manfrotto 200PL plates

Q: 9. Can I use with a Sirui T-005SK T-0S Series Travel Tripod with B-00 Ball Head (Black, Aluminum) B&H # SISUT005SK MFR # SUT005SK ?

A: Yes you can

Q: 10. What's the exact length? (Including the head and then the shaft only). I have a 3.5mm thick arca plate and 5.5mm depth tripod mount in the camera. On the other hand, the clearance for the head inside the plate is 6mm.

A: I have one of the 1/4 20 screws with D ring for fastening. I measured the overall length as 11.94mm and the threaded shaft is 8.25mm long. The head thickness is4mm and the depth of the plate for the head is 7mm. The screw works just fine and no need for tools to get the screw nicely tightened to the camera. The D ring folds down and fits in the plate properly to permit easy fit to the mount.Bob Haas