The Bridgeport 1/2" 1251 Rigid, EMT or IMC Conduit Clamp-On Aluminum Entrance Cap ensures a secure connection point for service entrance wires. Operators can utilize the four holes with 5/16" diameter to connect service entrance wires. This entrance cap is compatible with rigid, EMT or IMC conduit. The cap’s aluminum construction is ideal for long-term use in most environments. Our service entrance caps are engineered with the quality and innovation that allows contractors to save time and money on every job. When you need quality electrical fittings for more efficient jobs, look for Bridgeport Orange.