This stainless steel d ring screw allows the fitment of different styles of plates to fit directly into the base of your camera equipment it can also be used without a plate to attach your camera to a strap or harness can be used with tripods monopods telescopes ball heads lens collars lens plates etc 14 stainless steel male thread with flat head screwdriver slot shaft is 10mm in length approx 5mm threaded 5mm unthreaded total length including base is 14mm head diameter is 14mm phot