Features: brand new and high quality 1/4" metal male thread with flat for 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. With the ring screw, can be fixed to the camera base no tools are needed, help you save your for time and energy, easy to install and disassemble the tripod. This quick release plate screw is suitable for the camcorder, camera tripod. Can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc. This camera tripod mounting plate screw advanced metal material, so provide precise dimension to fit perfectly, which is long lasting, sturdy and reliable. If you are a senior photographer, you will know how important it is to have such a set of common parts for photography. They will help you solve many photography problems. Specifications: Material:Metal Color: Silver Shaft Length: Approx. 10mm/0.39 inches Total Length: Approx.16.5-16.7mm/0.64-0.65 inches for Head Dia: Approx.16.5-16.7mm/0.64-0.65 inches Weight: 0.19oz/5.4g Package Includes: 1x Quick Plate Screw note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.