1、The screw is made of good quality stainless steel, sturdy, high strength, anti-rust and durable 2、Standard 1/4'' thread screw, with flat head screwdriver slot and hinged "D" Ring 3、Helps fix cameras firmly and stably on the quick release plate 4、Can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc 5、Allows the fitment of different styles of plates to fit directly into the base of your camera equipment via the 1/4" screw Features: 1. The screw is made of good quality stainless steel, sturdy, high strength, anti-rust and durable. 2. Standard 1/4'' thread screw, with flat head screwdriver slot and hinged "D" Ring. 3. Helps fix cameras firmly and stably on the quick release plate. 4. With a D-ring for simply screwing it into quick release plate without any tool. 5. Can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc. 6. Allows the fitment of different styles of plates to fit directly into the base of your camera equipment via the 1/4" screw. Specification: Condition: 100% Brand New and High Quality Material: Stainless Steel Color: Sliver 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 Included: 1 x D-ring Screw for quick plate