ITEM NAME:1/4 Inch D Shaft Screws Adapter for DSLR Camera Tripod QRS Quick Release Description: - 1/4"" metal male thread with Hex Socket & hinged ""D"" Ring. - D-ring with flat head screwdriver slot , can drive it by coin. - This quality robust captive screw allows the fitment of different styles of plates to fit directl. - Can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc. Specification: - Material:Iron - Size:16x16x13mm/0.63x0.63x0.51inch - Tail maximum diameter: 16mm/0.63inch - tail thickness: 3mm/0.12inch - screw: 10mm (with thread: 5mm) Package Included: 1 PiecexD-Ring Screw Note: Iron products will rust, pay attention to water and moisture..Screw: 10mm (with thread: 5mm). 1 PiecexD-Ring Screw. - D-ring with flat head screwdriver slot, can drive it by coin.