Sargent 7275 Key Blank CL Keyway 7 Pin
These 7 pin key blanks are mid-level for use with multi-keyway systems.Available with eight different key sections.
Colleges, institutions, and government buildings required more keying choices than the 4,096 theoretical changes of a conventional six-pin tumbler lock mechanism. A number of options began to appear in order to key larger and larger projects. To resolve this problem, SARGENT utilized the development of sectional keys and related keyways. To develop sectional keying, conventional lock cylinder keys and keyways were modified in two ways. The first was to develop similar key and keyway configurations. These keys for SARGENT would become the Day Keys. They would be similar but different enough to prevent one keyway specific key from entering a different keyway. SARGENT decided to develop nine different keyways and keys for each of the sectional (multiplex) families.
