This New Yorker Boiler Screw Cap is a standard component designed for use in various boiler systems. The screw cap has a diameter of 5/16 inches and a length of 3/4 inches, conforming to the industry-standard measurements. It features an 18-thread count, which ensures a secure fit and robust performance in high-pressure environments. The screw cap is made from durable materials that can withstand the harsh conditions inside a boiler system, ensuring long-lasting performance and reliability. Its primary function is to securely fasten components within the boiler system, preventing leaks and maintaining optimal operating pressure.