1-Star Anti-Snap Cylinder with Knob and Vertical Key

Technical Specifications

Parameter	Specification Details
Model Type	1-Star Anti-Snap Cylinder with Knob (Thumbturn Cylinder)
Profile Dimensions	Standard Profile: 32.85 x 16.85 x 9.85 mm (Length configurations available)
Housing / Plug Material	Solid Brass / Solid Brass (Pearl nickel-plated oil-sealed)
Knob Material & Style	Solid Brass, K8 Style
Knob Structure	Detachable Knob Structure
Pin Tumbler System	6 Key Pins + 6 Driver Pins
Key Pin Configuration	6 Pins (3 Mushroom Pins + 2 Straight Pins + 1 Hardened Steel Pin)
Driver Pin Configuration	6 Pins (4 Spool Pins + 1 Double-Groove Pin + 1 Hardened Steel Pin)
Pin Dimensions	Diameter: Φ2.8 mm
Hole Diameters	Key Pin Hole: Φ3.0 mm / Driver Pin Hole: Φ3.0 mm
Key Pin Step	0.48 mm
Key Pin Lengths	4.75 / 5.23 / 5.71 / 6.19 mm
Anti-Drilling Protection (Housing)	1 Hardened Anti-Drill Pin per side (Φ1.5 x 16 mm)
Anti-Drilling Protection (Plug)	1 Steel Ball (Φ2 mm) + 2 Anti-Drill Pins (Φ2 x 8 mm) + 1 Hardened Bearing Steel Pin
Anti-Snap Feature	Engineered Sacrificial Cut (Easy-to-break slot with anti-bump pin design)
Anti-Picking Protection	Spool driver pins, double-groove driver pin, and mushroom key pins
Anti-Bumping Protection	Anti-bump configuration available (Selectable)
Standard Finish	Pearl Nickel
Key Platform	Vertical Key / Yale Keyway (5 Keys, H5 Square Handle, Nickel Silver)
Cam / Clutch Material	Powder Metallurgy Iron-based
Cam Style	Compliant with DIN Standard (Selectable)
Durability	Over 100,000 Cycles
Certification	Certified according to EN 1303 Standard (1-Star Rated)
Mounting Hardware	M5x80 Installation Screw

Core Configurations & Applications

Hardware Specifications

• Engineered Sacrificial Cut (Anti-Snap): Features a precision-machined sacrificial cut on the exterior side designed to detach cleanly under forced snapping attacks, leaving the central locking cam and internal mechanism secure inside the mortise.
• Detachable Brass Knob: Fitted with a solid brass K8 knob utilizing a detachable structure, enabling interior manual locking and egress without requiring a key.
• Multi-Component Anti-Drilling Assembly: The housing incorporates a Φ1.5 x 16 mm anti-drill pin per side. The brass plug is reinforced with a Φ2 mm steel ball, two Φ2 x 8 mm anti-drill pins, and one hardened bearing steel pin.
• 6-Pin Calibrated Tumbler Architecture: The key pin stack contains 3 mushroom pins, 2 straight pins, and 1 hardened steel pin, working against 4 spool pins, 1 double-groove pin, and 1 hardened driver pin. Designed with a 0.48 mm pin step and lengths of 4.75, 5.23, 5.71, and 6.19 mm.
• Vertical Key Platform: Utilizes a classic vertical Yale-style keyway. Supplied with 5 long-neck nickel silver keys featuring H5 square handles, laser-encoded bitting, and an ownership key registration card.
• DIN Standard Cam & Clutch: Integrates a powder metallurgy iron-based clutch and cam compatible with standard European mortise lockcases.

Primary Application Environments

• Residential Entry Doors: Ideal for UPVC, composite, and timber doors requiring certified 1-star anti-snap protection combined with keyless interior thumbturn exit.
• Commercial Offices & Suites: Suitable for executive suites, private offices, and interior partitions requiring internal thumbturn access and exterior key control.
• Institutional Facilities: Compatible with Master Key Systems for structured access management across commercial facilities.

Optional Configurations & Key Systems

Optional Hardware Features

Based on project specifications, the following options can be added:

• Anti-Bumping Protection: Optional internal pin and spring configuration.
• 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 and registration card.
• 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