I've just seen this on eBay.co.uk
Captive 1/4" D Ring Tripod / 4mm Hex Head / 15mm QR Plate / Camera Screw
It has a folding ring to attach your 'safety belt' to so you don't lose it. It's £4.99 with free postage....limited quantity left.
1/4 inch Thread
Captive Quick Release
D Ring Screw
Ideal for Manfrotto / Arca Swiss / Gitzo etc
This quality robust captive screw allows the fitment of different styles of plates to fit directly into the
base of your camera equipment via the 1/4" screw
Can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc
1/4" metal male thread with 4mm Hex (Allen socket) & hinged "D" Ring
Shaft is 15mm in length, including the thread
Total length including base is 18.5mm
Head is 14.8mm in diameter (not inc D-ring)
Head is 20mm in diameter at its widest point (inc D-ring)
Made from highest quality stainless steel
We're located in Norwich, within the UK and so is all of the stock that we list on eBay, your items will be shipped from the UK.
Customer satisfaction is very important to us, we offer a 7 Day money back guarantee. All we ask is that the item is sent back in its original condition and in the original packaging (or similar protective packaging).
In the unlikely event that an item is defective or not as described we will refund reasonable postage costs of returning the item to us, otherwise it will be the buyers responsible for the cost of the return.
Proof of postage should be requested before sending any item back to us