Hellermann Tyton Red Ring Lug M4: Precision Pre-Insulated Terminal for Demanding Electrical Connections Engineered for Reliability in High-Vibration Environments The Hellermann Tyton Pre-Insulated Terminal Red Ring Lug M4 Hole is a professional-grade connector designed to deliver secure, long-lasting electrical terminations in automotive, marine, and industrial applications. Its double grip crimp design provides a robust mechanical and electrical bond, making it...