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7×7 Cylinder with Knob and Dimple Key

The 7×7 cylinder with knob features a solid brass construction, a detachable K8 brass knob, and a dimple key platform. Built with a 7×7 pin configuration, it is certified according to the EN 1303 standard and tested for a durability of 100,000 cycles. Standard configurations include anti-drilling pins and spool pins. Available for B2B procurement with optional master key systems.

7x7-Cylinder-with-Knob-and-Dimple-Key.

Technical Specifications

ParameterSpecification Details
Model Type7×7 Cylinder with Knob (Thumbturn Cylinder)
Profile DimensionsLength: 78 mm (Profile: 32.85 x 16.85 x 9.85 mm)
Housing / Plug MaterialSolid Brass / Solid Brass
Knob Material & StyleSolid Brass, K8 Style
Knob StructureDetachable Knob Structure
Pin Mechanism7 Key Pins + 7 Driver Pins
Pin DimensionsDiameter: Φ2.5 mm
Pin Lengths5.3 / 5.7 / 6.1 / 6.5 / 6.9 / 7.3 mm
Pin Step0.4 mm
Hole DiametersKey Pin Hole: Φ2.6 mm / Driver Pin Hole: Φ2.9 mm
Standard FinishPearl Nickel
Key TypeDimple Key / Computer Key
Key Quantity & Style5 Keys, H11 Plastic Head
Key MaterialNickel Silver or Full Brass (Selectable)
Cam / Clutch MaterialPowder Metallurgy Iron-based
Cam Style10-Teeth Gear (Selectable)
Durability100,000 Cycles
CertificationCertified according to EN 1303 standard
Mounting HardwareM5x80 Installation Screw

Core Configurations & Applications

Hardware Specifications

  • 7×7 Pin Configuration: Designed with 7 key pins and 7 driver pins. The pin step is 0.4 mm, with available pin lengths of 5.3, 5.7, 6.1, 6.5, 6.9, and 7.3 mm.
  • Detachable Brass Knob: Fitted with a solid brass K8 knob utilizing a detachable structure, enabling interior manual locking without a key.
  • Anti-Drilling Components: Includes physical anti-drilling pins. The housing contains 1 pin per side (Φ1.5 x 15 mm), and the plug contains 1 pin per side (Φ1.5 x 4 mm).
  • Anti-Picking Components: Equipped with 2 spool pins.
  • Clutch and Gear Mechanism: Incorporates a powder metallurgy iron-based clutch and an optional 10-teeth gear.
  • Dimple Keys: Supplied with 5 dimple keys featuring an H11 plastic head, selectable in nickel silver or full brass.

Primary Application Environments

  • Residential Doors: Provides keyed exterior entry combined with convenient interior thumbturn locking without needing a key to exit.
  • Commercial Offices & Suites: Suitable for office doors, private conference rooms, and interior partitions requiring internal thumbturn control.
  • Institutional Facilities: Compatible with master key systems for unified multi-room access management.

Optional Configurations & Key Systems

Optional Hardware Features

Based on specific project requirements, the following features can be added:

  • Anti-Bumping: Optional internal pin configuration.
  • Anti-Snap (Sacrificial Cut): Optional grooved design specifying breaking points.
  • Anti-Breaking: Optional reinforced structural additions.
  • Double-Entry Function: Optional mechanism allowing external key operation under specific conditions.

Keying Platforms

  • Keyed Different (KD): Each lock cylinder operates with an independent set of keys.
  • Keyed Alike (KA): Multiple cylinders operate with a single key.
  • Master Key System (MKS): Multi-tier master key configurations for facility management.

B2B Procurement & Export Terms

  • Minimum Order Quantity (MOQ): Please consult our commercial department for specific finish, length, and upgrade combinations.
  • Production Lead Time: Dependent on order volume and master keying specifications (typically 30 to 45 days).
  • Samples: Physical cylinder prototypes are available for fitment testing and evaluation.
  • Incoterms & Shipping: FOB Ningbo, Shanghai, or Tianjin. Packaged in standard industrial cartons.
  • Technical Data: 2D and 3D CAD files are available for OEM partners to assist with lockcase integration.

Manufacturing Information

Beijing Oupuoptic Instrument Co., Ltd. was founded in Tongzhou District, Beijing, in 2001. In 2019, the company expanded operations by establishing Zhejiang Guocheng Technology Co., Ltd. in Zhejiang province, which includes a dedicated lock cylinder manufacturing facility.

  • Manufacturing Facility: A 5,000-square-meter facility equipped for lock cylinder and hardware production.
  • Workforce: Supported by a dedicated team of over 100 professionals.
  • Quality System: Operations are conducted under the ISO9001 international quality system certification.
  • Product Focus: The lock factory specializes in independent research, product design, and the precision manufacturing of European and American standard lock cylinders.

Frequently Asked Questions

Yes, this cylinder features a solid brass K8 knob with a detachable structure, designed to facilitate hardware assembly and door installation.

Yes, the anti-drilling pins (Φ1.5 mm) in the housing and plug, along with 2 spool pins for anti-picking, are standard configurations. Features such as anti-bumping, anti-breaking, and anti-snap are available as optional selections.

Both the clutch and the optional 10-teeth gear are manufactured from powder metallurgy iron-based material.

Yes, the 7×7 pin mechanism is compatible with multi-level Master Key Systems. Contact our engineering team with your keying matrix for specifications.

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