RAYSUN 3 Pack Camera 1/4 Inch D Shaft D-Ring Screw Adapter for Camera Tripod Qrs Quick Release Plate - Camera Quick Release Screw 1, camera 1/4 inch quick release D-Ring screw; 2, made of stainless steel; 3, D-ring design for very easy using; 4, total length: 14mm(including base); thread length: 5mm; non-threaded length: 4.5mm; 5, package: 3 x quick release D-Ring screw.