Duro locks are built with a revolutionary 12-pin cylinder system designed for complete locking protection. Our highly secure mechanism uses two rows of six anti-drilling pins of varying length and double-grooves, making it almost impossible to pick. Additionally, our patented 12-pin cylinder system offers a multitude of key combinations, and it is designed to be used with a large number of locks, such as profile cylinders, deadbolt cylinders, cam locks, and padlocks.
This Art.558/70/C Oval Profile Cylinder can replace most UNION Profile Cylinder, which fits the Oval Profile Mortise lockset.
Oval Profile Double Cylinder with Thumbturn
Solid Brass Body
12-pin Dimple key
One Key System capability (DMS)
Includes 4 keys (2 metal & 2 plastic key heads)