Extension flush bolt installs flush with the edge of the door leaf. Features delayed action and automatic lever retraction.   Features:

• 1″ x 6 3/4″ (25mm x 171mm) face
• 1/2″ (13mm) rod bolt head
• 1″ x 2 1/4″ (25mm x 57mm) keeper
• 7/8″ x 2 1/8″ (22mm x 54mm) guide
• 3/4″ (19mm) round backset
• 12″ (305mm) standard extension length, other extension lengths available upon request
• Finishes: C3, C4, C10, C28.