Square Single-Sided Deadbolt

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Emtek's Square Single-Sided Deadbolt is operated by a thumbturn from the inside only — no cylinder or keyway. Ideal for a door that needs a secure interior lock with no exterior ha rdware (e.g. a patio or service door). Solid brass, handing not required. Thumbturn inside only; no exterior keyway Sold as a complete set with latch and strike Unlacquered Brass (US3NL) available at a $20 list upcharge Documentation:Download spec sheet (PDF)Download installation guide (PDF) Show more