HEYCO's 3835 Knock-Out Seal is designed for rapid and secure wire connections in electrical enclosures. Molded in silver gray to resemble galvanized steel, these seals offer a cost-effective solution for a wide range of applications. They install quickly with fingertip pressure, eliminating the need for tools, and lock firmly in boxes up to 1/8" thick. The seals are constructed from 6/6 Nylon and are recognized under Underwriters’ Laboratories’ Component Program, ensuring reliable performance and safety.