These 11 mm long device screws from Hama feature a metal thread and a plastic disc. Creativity and ingenuity characterize the idea factory Hama and describe the exemplary success story of this traditional family business, which is always on the lookout for new markets and technologies. With its 16,000 products, Hama is now one of the leading accessory specialists in the fields of photography, video, audio, computer, and telecommunications. Since its early days, the company's philosophy has included the quality-enhancing use of the latest technology.