ITEM NAME:Centechia Camera Tripod Captive 1/4 Inch Folding D-Ring Adapter Screw BME *100% Brand New and High Quality *Precision made 1/4" Stainless Steel Tripod screws *1/4" metal male thread with flat head screwdriver slot and hinged "D" Ring. *This 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 *Material: Stainless Steel *Color: Sliver Specification: *The length of shaft: Approx. 10.5mm/0.41inch *Total length(include base): Approx. 14.5mm/0.57inch *The diameter of the screw head: Approx. 11.5mm/0.45inch *The diameter of the D-ring head: Approx. 16mm/0.63inch Package: 1x Screw for quick plate.Precision made 1/4" Stainless Steel Tripod screws. 1x Screw for quick plate. The length of shaft: Approx. Total length(include base): Approx.