Designed for use instead of conventional flip-lever operated flushbolts, the 1877 Cylinder-Operated Flushbolt gives building management key control of the inactive leaf of paired doors. Prevents casual locking of the inactive leaf by children or other unauthorized persons. Uses same basic over-center action mechanism as MS pivoted bolt locks. Recommended for installation at both top and bottom of inactive door with MS1837 in active door for greatest security. May be installed to lock at threshold or header.
Also known as: 1877628
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