double sided deadbolt lock
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt - Seny Hardware
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt - Seny Hardware
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt - Seny Hardware
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt - Seny Hardware
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt - Seny Hardware
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt - Seny Hardware
deadbolt keyed both sides
emtek double cylinder deadbolt
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square deadbolt lock
single deadbolt
locks and deadbolts

SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt

$45.99
or 4 interest-free payments of $20.00 with Shop Pay
  • A flatter lock profile with less visual bulk.
  • Sharp geometry built for contemporary doors.
  • Simple keyed security with smooth inside release.
  • Minimal look, dependable front door protection.
  • Pairs cleanly with square contemporary hardware.
Finish:Matte Black
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✔ FREE U.S. SHIPPING

Free shipping on all orders.

✔ SHIPS FAST FROM U.S.

Most orders dispatch within 1 business day.

✔ EASY RETURNS & WARRANTY

30-day returns + 2-year coverage.

FAQ

  1. Can Seny hardware be customized for DIY projects?
    We offer personalized engraving services for DIY enthusiasts, making every door handle truly one of a kind and connecting the warmth of home with a personal touch.
  2. What finishes are available for door hardware?                                                        Seny Hardware offers a wide range of finishes, including Matte Black, Brushed Copper, Faux Gold, Brushed Red Bronze, Highlighted Red Bronze, Brushed Nickel, Polished Chrome, Antique Brass, Aged Brass, and Champagne Bronze — crafted to elevate any interior.
  3. Is Seny Hardware suitable for the exterior of my house?                                        Yes, our door handles and pulls are protected with a powder-coated anti-corrosion finish and have undergone rigorous quality testing for residential use. In addition, all of our hardware is thoroughly tested for quality before shipping.               
  4. How quickly can I get my order?                                                                               
    Most orders ship within 1–2 business days, and transit time varies by location—typically 2–7 days (Standard) or 1–2 days (Expedited). You’ll receive a tracking number once your package ships!
  5. Do your mortise locksets include keys?      
    Yes, the package contains one deadbolt, strike plate, latch, and two skeleton keys.
  6. What is the backset of your mortise lock?                                                                2.36"– We do not offer any other size.
  7. Will your interior mortise lock chassis fit all older doors with mortise locks?      Compatible with most interior doors and can adapt 2.36"backset.
  8. Are crystal door knobs hard to use in winter because they feel cold?                   While crystal naturally feels cooler to the touch during winter, they will warm up quickly with use.Many customers choose them because they not only function perfectly as hardware but also add a unique decorative accent that elevates the entire space.
  9. What do I do if someone locks themselves in a room?                                            There is a small hole in the Rosette or Plate on the exterior side of the door that can be used to unlock a “locked” privacy door. Insert a straightened paper clip or something of similar size into the privacy hole and gently push to unlock the privacy.

  10. Do the screw holes match?                                                                                         Generally, our screw holes and locks are designed to be compatible. If you encounter any mismatch issues, please take a photo and contact our after-sales customer service for help.                                                                                         

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Why Customers Love It

TIMELESS DECORATIVE DESIGN

Thoughtfully crafted hardware that adds refined character to doors, drawers, and cabinets.

SOLID & DURABLE CONSTRUCTION

Built with quality metal components for smooth performance and dependable everyday use.

EASY INSTALLATION & FUNCTION

Standard fitting and practical configurations make setup simple for interior and entry applications.

MULTIPLE FINISHES & OPTIONS

Available in versatile finishes and styles to complement both modern and vintage homes.

Square Deadbolt Lock with a Cleaner Security Profile

Not every deadbolt needs to stand out to do its job. This square deadbolt lock is designed for homeowners who want dependable front door security without bulky, outdated hardware.

With its flat low-profile shape, clean square trim, and smooth single cylinder operation, it delivers a more refined locking solution for modern doors.

Modern Low Profile Deadbolt Design

Unlike traditional rounded deadbolts, this lock sits with a cleaner, flatter appearance on the door surface.

It creates:

✔ Sharper square geometry
✔ Less visual bulk
✔ A more minimalist exterior finish

Perfect for doors where modern hardware consistency matters.

Reliable Single Cylinder Security

Designed with a keyed exterior cylinder and interior thumb turn, this modern square deadbolt provides:

✔ Secure exterior keyed locking
✔ Quick inside unlocking
✔ Smooth daily lock engagement

A dependable everyday deadbolt solution for residential entry doors.

Built for Front Door & Exterior Applications

Ideal for:

✔ Front doors
✔ Side entry doors
✔ Back exterior doors
✔ Contemporary interior doors requiring keyed privacy

This deadbolt offers versatile placement while maintaining a clean architectural look.

Durable Construction for Long-Term Use

Crafted from premium metal materials for:

✔ Strong internal locking performance
✔ Corrosion resistance
✔ Long-lasting daily durability

Built to handle repeated use while maintaining a smooth locking feel.

Standard Compatible & Easy to Install

✔ Adjustable backset: 2-3/8" or 2-3/4"
✔ Fits standard U.S. door thicknesses from 1-3/8"–1-3/4"
✔ Suitable for replacement and new installations

Built for Everyday Confidence

Backed by a 2-year warranty, this square deadbolt lock delivers long-term reliability, cleaner aesthetics, and dependable front door security.

Important Notes

  • Due to production batch variations, slight color differences may occur

  • California Proposition 65 Warning
    Cancer and Reproductive Harm — www.P65Warnings.ca.gov

Styled for Real Homes

See It in Your Space

SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt applicable scenario
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt applicable scenario
SENY Modern Square Deadbolt Lock – Low Profile Single Cylinder Deadbolt applicable scenario

From entryways to bedrooms — a timeless upgrade in minutes.