Specification: Weight : 6.6g/pcs Color: Metallic Material: stainless steel The D-ring bolt is meant to hold a plate onto a camera lens. One bolt can handle a 500mm or 600mm lens on the lens foot. On the larger lenses bigger plates have room for two of the bolts. Using two bolts is better where the lens foot has threads for this. The D-ring on the bolt is used for tightening.
√ Size - The diameter of the screw head is 0.43 inches (11 mm) and the thickness is 0.15 inches (4 mm). The shaft is 0.66 inches (17 mm) long, about 0.21 inches (5.5 mm) threaded, and 0.45 inches (11.5 mm) unthreaded.
√ Material - These screws are made of stainless steel and are strong and wear-resistant. They are corrosion-resistant and rust-resistant, even after being cleaned after a long period of use, they are still the same as new ones and are difficult to damage.
√ Unique Design - The D-ring is easy to adjust the tightness, and the screw can be twisted out without tools. A screwdriver can be used for the slot of the word to fix it tighter. The elongated shaft helps you fix it more stably, making it easier to install a tripod, etc.
√ Perfecter for Decorating - These excellent quality stainless steel captive screws allow the installation of different styles of plates to fit directly into the basic functions of your camera equipment: tripods, monopods, telescopes, ball heads, lenses, lens plates, etc. can be used.
√ Package - You will get 2 pcs screw in a package.