The SR-4070B is a snap rivet designed for quick and secure fastening. Made from Nylon 6 (RMS-52), this rivet is engineered to fit into panel holes with a diameter between 0.177 and 0.217 inches (4.5 to 5.5 mm). It features a head diameter (Dimension A) of 0.28 inches (7.0 mm) and comes in a standard black color. These rivets are ideal for applications in electronics and other assemblies where a simple, push-in fastener is required.