Mortise Front Door Lock DDML011 delivers reliable mechanical security for entrance doors across residential and commercial environments. Engineered to meet CE EN12209 and DIN 18251 Grade 3 standards, this lock supports 200,000 test cycles and achieves a 260-minute fire rating under EN1634, ensuring stable performance in demanding conditions. The internal structure uses solid 304 stainless steel components, including latchbolt, deadbolt, follower, forend, and strike plate, combined with a galvanized steel case for enhanced durability and corrosion resistance. Multiple backset options from 55 mm to 80 mm allow flexible installation across various door configurations, while square or radius forend designs support different aesthetic and hardware requirements. With a center distance of 72 mm and compatibility with both wooden and metal doors, this mortise lock provides a dependable solution for secure, long-term use in high-traffic entry systems.