Angled view of round door locks in satin brass, matt black, satin nickel, antique brass, and oil-rubbed bronze on a white background
Angled view of the satin brass round door lock pair with key cylinder face and turn piece on a white background
Close view of the round rose featuring the rounded turn piece in satin brass on a white background
Satin nickel round door lock set with supplied keys, latch bolt, strike plate, and fixing screws on a white background.
Satin brass round door lock with keyway cylinder mounted on a wood interior door beside a hallway.
Dimension drawing of the round door lock with labelled callouts for the Ø70 mm rose and adjustable 60/70 mm latch on a white background
Door Hardware

Modern Round Double-Sided Zinc Alloy Interior Door Lock

Brassera model BRS-DOR-ZNC-009 round door lock features paired Ø70 mm zinc alloy roses, a keyed cylinder, a turn piece, and an adjustable backset latch.

Specifications

Model
BRS-DOR-ZNC-009
Material
Zinc alloy
Type
Round double-sided interior door lock
Design style
Modern
Rose diameter
70 mm (2.76 in)
Adjustable backset
60 mm (2-3/8 in) or 70 mm (2-3/4 in)
Function
Key, Privacy (BK), Passage (PS), Dummy
Finish
Satin Brass, Matt Black, Satin Nickel, Antique Brass, Oil-Rubbed Bronze
Use
Bedroom and bathroom interior doors
Feature
Easy installation
Customization
Accept OEM
Minimum order
5 pieces
Lead time
10 days (1-100 pcs), 12 days (101-500 pcs), 15 days (501-2000 pcs)
Packaging
One product, foam, inner box, outer carton
Package size
35 × 28 × 20 cm
Gross weight
1.5 kg
Selling unit
Piece
Place of origin
Guangdong, China
Brand
Brassera
Zinc alloy round door lock set featuring paired Ø70 mm roses with a keyed cylinder on one face and a turn piece on the other. Includes an adjustable 60/70 mm backset latch bolt for bedroom and bathroom doors.

Circular Ø70 mm Rose Discs in Modern Zinc Alloy

This modern door lock introduces clean architectural symmetry through a pair of zinc alloy roses. Each face carries a round disc measuring Ø70 mm in diameter, creating balanced proportions across interior door leaves. Formed from zinc alloy, each plate presents clean perimeter lines without ornamental distraction. The low-profile disc shape seats closely against flat door leaves, providing distinct visual balance while maintaining modern architectural geometry. By aligning both operating roses along one central mounting axis, this hardware pairs geometric discipline with unadorned metal construction across interior millwork schedules.


Keyway Cylinder Face Opposite a Rounded Turn Piece

Operation relies on two functional faces working across one shared central axis. One round rose incorporates a cylinder boss with an exposed keyway, allowing controlled access using supplied physical keys. The opposing rose features an integrated rounded turn piece with smooth rectangular contours, enabling manual operation from that side. This dual-surface arrangement separates keyed access from manual turning at the door leaf. Because both roses share identical circular footprints, outward appearance remains uniform on either side of the opening.


Five Surface Finishes Anchored by Satin Brass and Oil-Rubbed Bronze

Surface treatments span five distinct architectural finishes selected for interior palettes. Warm metallic luster appears in Satin Brass, while Antique Brass delivers deeper aged tone across heritage millwork. For modern monochrome schemes, Matt Black provides uniform low-sheen character across the rose discs. Interior specifications calling for neutral silver tones benefit from Satin Nickel, a calm brushed mid-tone. Oil-Rubbed Bronze completes the selection with rich dark undertones for stained wood doors. Each factory coating covers both zinc alloy roses for unified visual continuity across multi-room projects.


Rectangular Faceplate Latch Bolt with Dual Backset Settings

Latching hardware centers on a rectangular faceplate latch bolt adjustable between 2-3/8 in (60 mm) and 2-3/4 in (70 mm) backset dimensions. This dual-position latch accommodates common door preparations. The rectangular faceplate seats flush against the door edge, aligning with the supplied strike plate as pictured. Beyond the keyed version, Brassera offers Privacy (BK), Passage (PS), and Dummy versions. Specifiers can maintain one rose profile across an entire project while assigning distinct functions room by room.


Bedroom and Bathroom Privacy with Easy Installation

This hardware configuration is specified for bedroom and bathroom doors, delivering appropriate privacy control through straightforward installation steps. Each supplied set includes paired circular roses, latch bolt, strike plate and mounting screws alongside physical keys as pictured. Featuring an easy installation design, the assembly mounts cleanly over standard boreholes using basic hand tools. The Ø70 mm rose diameter provides generous coverage over cutout edges against painted or stained timber surfaces. Installers complete fitting quickly without specialized routing jigs, making these locks practical for residential upgrades across bedrooms and bathrooms.



OEM Manufacturing and Staged Dispatch for Commercial Schedules

Brassera supports commercial purchasers through flexible OEM production capabilities alongside standardized protective packaging protocols. Individual locksets ship protected by foam within an inner box, packed into shipping cartons measuring 35 by 28 by 20 cm with gross weight of 1.5 kg. Factory production follows structured dispatch tiers: orders from 1 to 100 units ship within 10 days, volumes between 101 and 500 units dispatch in 12 days, and quantities from 501 up to 2000 pieces fulfill within 15 days. Project teams submit hardware schedules directly to receive firm trade quotations aligned with construction timelines.
Products are manufactured in Guangdong, China. The selling unit is one piece.

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