The Calmark Birtcher part MVA260-4.80ETM2.5LK is a Card Lok PCB Retainer designed specifically for secure and reliable mounting of printed circuit boards. At 4.8 inches in length, it provides ample space to accommodate various board sizes. With an expansion of 8.26mm, this retainer ensures a snug fit to prevent any unwanted movement or damage to the PCB. The addition of a lock patch enhances its security, providing an extra level of protection to hold the PCB firmly in place. The center mounting hole allows for easy installation and alignment, while the visual indicator offers a quick and convenient way to verify that the retainer is correctly seated.Featuring a black anodized finish, this retainer not only adds a sleek and professional look to your PCB assembly, but also provides excellent durability and corrosion resistance. Trust the Calmark Birtcher MVA260-4.80ETM2.5LK to keep your PCB securely in position while maintaining optimal functionality.