SENY octagon crystal door knob with decorative rosette
SENY octagon crystal door knob installed on interior door
SENY octagon crystal door knob available in multiple finishes
SENY octagon crystal door knob dummy passage privacy functions
SENY octagon crystal door knob passage function hardware set
SENY octagon crystal door knob privacy function interior door lock
SENY octagon crystal door knob dummy decorative door knob
SENY octagon crystal door knob installed on interior doors
octagon crystal door knob dimensions and compatibility SENY
SENY octagon crystal door knob brushed gold passage function
SENY octagon crystal door knob brushed gold privacy function
SENY octagon crystal door knob brushed gold dummy function
SENY octagon crystal door knob matte black passage function
SENY octagon crystal door knob matte black privacy function
SENY octagon crystal door knob matte black dummy function
SENY octagon crystal door knob satin nickel passage function
SENY octagon crystal door knob satin nickel privacy function
SENY octagon crystal door knob satin nickel dummy function
SENY octagon crystal door knob polished chrome passage function
SENY octagon crystal door knob polished chrome privacy function
SENY octagon crystal door knob polished chrome dummy function

SENY Octagon Crystal Door Knob with Rectangular Backplate

Sale price$69.99
or 4 interest-free payments of $20.00 with Shop Pay
  • Faceted octagon crystal with refined light reflection
  • Rectangular backplate for a cleaner architectural look
  • Modern geometric profile with balanced proportions
  • Available in privacy, passage, and dummy functions
  • Designed to elevate everyday interior doors
Finish:Brushed Gold
Function:Passage
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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.                                                                                         

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.

SENY Octagon Crystal Door Knob

Rectangular Backplate · Interior Door Hardware

Distinctive Geometry with Crystal Brilliance

The SENY Octagon Crystal Door Knob combines precise crystal craftsmanship with architectural design. Featuring a faceted octagonal crystal knob paired with a clean rectangular backplate, this modern crystal door knob introduces structure, clarity, and subtle brilliance to interior doors.

Its geometric silhouette reflects light beautifully while maintaining a balanced, contemporary presence—making it an ideal choice for modern, transitional, and design-focused interiors.


Precision-Cut Lead-Free Crystal

Crafted from premium lead-free crystal, this octagon crystal door knob offers exceptional clarity and durability.

Key features include:

  • Precision-cut octagonal crystal design
  • Brilliant light reflection from multiple angles
  • High transparency for a refined visual effect
  • Durable construction for long-lasting performance

The faceted crystal surface enhances brightness and creates elegant light reflections that elevate the look of interior doors.


Rectangular Backplate with Architectural Balance

The elongated rectangular backplate introduces strong vertical lines and a structured design language.

This modern backplate:

  • Frames the crystal knob with architectural clarity
  • Creates a balanced geometric aesthetic
  • Complements contemporary and transitional interiors

Together, the octagonal crystal knob and rectangular backplate form a visually striking combination of geometry and elegance.


Designed for Interior Doors

This crystal door knob is ideal for a wide range of interior spaces, including:

  • Bedrooms
  • Hallways
  • Home offices
  • Living spaces
  • Decorative interior doors

Its clean geometric style works beautifully in both modern homes and refined classic interiors.


Available Functions

Choose the door knob function that suits your space:

  • Passage
    Non-locking function ideal for hallways, closets, and shared spaces.
  • Privacy
    Locking function designed for bedrooms and bathrooms.
  • Dummy
    Decorative fixed knob for closet doors or inactive doors.

Easy Installation & Standard Fit

Installation is simple with the included hardware set.

Features include:

  • Complete hardware for one door
  • Pre-mounted knobs for easier installation
  • Adjustable latch for standard backsets
  • Compatible with most U.S. interior doors

Adjustable latch fits:

  • 2-3/8" backset
  • 2-3/4" backset

Designed to fit standard interior door thickness.

Important:  This lock set is designed for standard pre-drilled doors.
For some older mortise lock doors, additional door preparation or a reinforcement plate may be required.

Need help converting an older mortise lock door?
Contact us before ordering, and we'll be happy to help determine compatibility and recommend a suitable solution.


Multiple Finish Options

Available in a curated selection of finishes to coordinate seamlessly with modern interiors, cabinetry, lighting fixtures, and complementary door hardware throughout your home.


Built for Everyday Performance

Engineered for durability and smooth daily operation, this modern crystal door knob is designed to deliver reliable performance and refined style for years to come.

  • Smooth turning mechanism
  • Durable internal components
  • Designed for everyday use
  • Backed by a 2-year warranty

A Geometric Crystal Door Knob for Modern Interiors

With its faceted octagonal crystal and structured rectangular backplate, this door knob introduces a distinctive architectural element to interior spaces—perfect for interiors that value clarity, geometry, and refined detail.


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 Octagon Crystal Door Knob with Rectangular Backplate applicable scenario
SENY Octagon Crystal Door Knob with Rectangular Backplate applicable scenario
SENY Octagon Crystal Door Knob with Rectangular Backplate applicable scenario
SENY Octagon Crystal Door Knob with Rectangular Backplate applicable scenario

From entryways to bedrooms — a timeless upgrade in minutes.