The CROUSE-HINDS/COOPER PLG4 is a rugged and reliable Explosion-Proof Threaded Plug made from durable Feraloyr Iron Alloy. This recessed plug is designed to securely seal threaded connections in hazardous environments, ensuring the safety and integrity of electrical systems. Perfect for industrial applications where protection against explosions is critical, the PLG4 offers top-of-the-line performance and peace of mind.