PRECISION MANUFACTURING: These male and female camera screw adapters are all manufactured according to INTERNATIONAL STANDARDS, making them suitable for most photographic equipment. DURABLE MATERIAL: Most adapter screws are made of aluminum alloy, while 3/8\" male to 1/4\" female screws are made of brass, making them rust-resistant and strong. MULTIFUNCTIONAL: These camera screw adapters have various uses and are often used for cameras, tripods, monopods, ball heads, lights, rigs and other camera accessories. ALL-IN-ONE SET: If you are a senior photographer, you know how important it is to have such a set of common photographic parts. They will help you solve many photographic problems. VARIOUS ACCESSORIES: 1/4\" male to 3/8\" male screws (3 pieces). 1/4\" male to 1/4\" male screws (3 pieces). 1/4\" female to 3/8\" male screw nuts (10 pieces). 1/4\" female to 3/8\" female adapters (3 pieces). 3/8\" male to 1/4\" female in brass (1 piece). 1/4\" male to 3/8\" female in brass (1 piece). 1/4\" male to 3/8\" metal male (1 piece). D-ring/D-shaft bushing screws (2 pieces). 1/4\" female to hot shoe adapter (1 piece). 1/4\" male to hot shoe mount (1 piece).