CCU02-20-FC is a flathead, fastener cap style gasket by Accro. It is made of a high density synthetic rubber with a stainless steel plate insert, and is designed to provide an effective and durable seal in any application that requires a flathead, fastener cap style seal. The gasket has an outside diameter of 20 millimeters, a thickness of 2.5 millimeters, and a flathead neck diameter of 6.8 millimeters. It is designed for applications with a temperature range between -50 to +105°C.