Features:- The D-Ring screw is made of good quality stainless steel, sturdy, high strength, anti-rust and durable.- Standard 1/4'' thread screw, with flat head screwdriver slot and hinged "D" Ring.- Helps fix cameras firmly and stably on the quick release plate.- With a D-ring for simply screwing it into quick release plate without any tool.- Can be used with tripods, monopod, telescopes, ball heads, lens collars, lens plates etc.- Allows the fitment of different styles of plates to fit directly into the base of your camera equipment via the 1/4" screw. Specifications:Shaft Length: 17mmTotal length (include base): 21mmHeight of the screw head: 4mmdiameter of the D-ring head: 16mmMaterial: Stainless Steel Package:1 x D-Ring Screw About this item [1/4" Stainless Steel Tripod Screws]: The D-Ring screw is made of good quality stainless steel, sturdy, high strength, anti-rust and durable [Application]: Standard 1/4'' thread screw, with flat head screwdriver slot and hinged, can be used with tripods, monopods,camera mounting plate, QR plate, telescopes, ball heads, lens collars, lens plates etc [Function]: Helps fix cameras firmly and stably on the quick release plate [Easy to Use]: With a D-ring for simply screwing it into quick release plate without any tool [Economical and Practical]: This 1/4'' mounting screw allows the fitment of different styles of plates to fit directly [1/4" Stainless Steel Tripod Screws]: The D-Ring screw is made of good quality stainless steel, sturdy, high strength, anti-rust and durable [Application]: Standard 1/4'' thread screw, with flat head screwdriver slot and hinged, can be used with tripods, monopods,camera mounting plate, QR plate, telescopes, ball heads, lens collars, lens plates etc [Function]: Helps fix cameras firmly and stably on the quick release plate [Easy to Use]: With a D-ring for simply screwing it into quick release plate without any tool [Economical and Practical]: This 1/4'' mounting screw allows the fitment of different styles of plates to fit directly