DescriptionD-ring screws precision made of 1/4"-20 stainless steel metal tripod screws, can be used with tripods, monopods, telescopes, ball heads, lens collars, lens plates etc. The main body was made of stainless steel and the rotatable d-ring made of alloy.Feature- Color: Silver. - Material: Metal. - Size: 1.6x1.6x1.25cm. - D-ring screws precision made of 1/4'' stainless steel metal tripod screws. - 1/4" metal male thread with flat head screwdriver slot & hinged "D" ring. - These excellent quality stainless captive screws allow the fitment of different styles of plates to fit directly into the base of your camera equipment. - The main body was made of stainless steel and the rotatable d-ring made of alloy.