- Thread Size: 1/4 inch external; Male Thread Number: 20. - Dimensions: Head diameter: 11 mm (0.43 inches); Head thickness: 4 mm (0.16 inches); Shaft length: 10 mm (0.39 inches). - Durable Material: Constructed from high-quality stainless steel, ensuring longevity with excellent hardness, corrosion resistance, and wear resistance. This adapter is designed to withstand the test of time without rusting. - User-Friendly Design: The conversion screw adapter allows for easy assembly and disassembly with standard tools. It can be quickly inserted and securely tightened, making setup hassle-free. - Versatile Applications: Ideal for use with lens plate key heads, light stands, tripod heads, ball heads, monopods, SLR cameras, camcorders, and more. This adapter enhances compatibility across various photography and videography equipment. - Practical Use Cases: - Perfect for mounting your camera on a tripod, ensuring stable and secure support for professional photography. - An essential accessory for videographers needing to attach equipment to light stands or monopods for dynamic shooting scenarios. - Great for photographers looking to quickly switch between different accessories on the same thread size without hassle. This conversion screw adapter is a reliable choice for anyone needing a robust and efficient solution for their photography and videography needs.