Single Cylinder Deadbolt

Single Cylinder Deadbolt | Heavy-Duty Architectural Door Security Hardware

Matching operational metrics to site requirements ensures correct deadbolt configuration for distribution channels and project specifications.
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| SINGLE CYLINDER DEADBOLT MATRIX |
+----------------------+-----------------------------+----------------------------+
| Metric | Commercial / Multi-Family | Residential Distribution |
+----------------------+-----------------------------+----------------------------+
| BHMA Grade | Grade 2 (Heavy-Duty) | Grade 3 (Standard-Duty) |
| Housing Construction | Die-Cast Zinc + Steel Core | Die-Cast Zinc |
| Cylinder Pin Count | 6-Pin (Master Key Capable) | 5-Pin Tumbler |
| Strike Screw Length | 3-inch hardened steel | 2-inch steel |
| Finish Options | US3, US10B, US15, US26D | Matte Black, Satin Nickel |
+----------------------+-----------------------------+----------------------------+

Keyed Alike (KA): Multiple deadbolts operate with a single key; property management retrofits across apartment complexes.

Keyed Different (KD): Individual keys for each lock; residential wholesale distribution.

Master Keyed (MK): Hierarchical key system allowing a single master key to open multiple sub-keyed doors; commercial and multi-tenant complexes.

Construction Keying: Temporary key function allowing contractor access during construction, automatically disabled upon insertion of the permanent homeowner key.

Multi-Family Residential Developments: Apartment complexes requiring standardized Grade 2 deadbolts with master key integration and heavy-duty strike reinforcement against kick-in attacks.

Single-Family Residential New Construction: Builder-grade and premium deadbolt configurations packaged for hardware wholesalers and regional distributors.

Hospitality and Light Commercial: Back-of-house service doors, utility rooms, and exterior staff entry points requiring robust mechanical locking without electrical infrastructure.

Perimeter locking hardware durability relies on alloy purity, precise machining tolerances, and surface treatment integrity.

[ Raw Material Ingestion ]

[ CNC Machining Centers ] -> Tolerances maintained within +/-0.02 mm for cam and cylinder housing

[ Automated Plating Line ] -> Multi-layer electroplating (Copper-Nickel-Chrome / PVD finish)

[ 100% QC Assembly ] -> Torque testing, key insertion force checks, and pin height calibration

Material Breakdown

• Deadbolt Bolt: Precision-forged solid brass or hardened steel core with internal hardened steel rolling pins to prevent hacksaw cutting attacks.

• Cylinder Plug and Housing: Machined solid brass bar stock to eliminate porosity and ensure smooth pin-tumbler sliding.

• Thumbturn Mechanism: Reinforced internal steel cam welded to zinc-alloy thumbturn base to withstand continuous torque without stripping.

Die-Casting Workshop: Equipped with 12 automated high-pressure zinc die-casting machines (ranging from 160T to 400T) ensuring dense, void-free structural housing components.

CNC Machining Department: 30 CNC vertical milling and lathe stations maintaining critical tolerance limits on internal cams and bolt channels.

Surface Treatment Facility: Closed-loop electroplating and electrophoretic coating lines delivering uniform coating thickness across Matte Black, Satin Nickel, Polished Brass, and Oil-Rubbed Bronze finishes.

Testing Laboratory:
• Salt Spray Chamber: Continuous ASTM B117 testing to verify corrosion resistance in marine and high-humidity climates.
• Cycle Testing Rig: Pneumatic automated actuation rigs running deadbolt extensions to verify endurance past 250,000 cycles.
• Torque & Impact Testers: Verifying resistance against wrench twisting on the cylinder housing and impact force on the deadbolt throw.

Auditing a manufacturing partner for single cylinder deadbolts involves verifying the following operational metrics:

Material Traceability: Request mill test certificates for brass bar stock and spectral analysis reports for zinc alloy ingots (Zamak 3).

Key Bitting Consistency: Ensure computerized key cutting machines maintain bitting depth tolerances within +/-0.03 mm to prevent key jamming and interchange issues.

Plating Adhesion Test: Verify cross-hatch tape tests and coating thickness measurements (minimum 15 micrometers nickel-chrome layer) to prevent early peeling or pitting.

Packaging Drop Test: Confirm ISTA-certified drop testing for master cartons to prevent transit damage to protruding thumbturns and faceplates.

Specification Alignment: Submit required ANSI grade, keying schedule (KA/KD/MK), backset dimensions, and finish requirements.

Prototyping & Sampling: Factory delivers functional samples and dimensional drawings within 7 to 10 business days for physical fit testing.

Tooling & Mold Confirmation: For custom faceplates, logos, or packaging, CNC tooling models are confirmed via 3D CAD sign-off.

Mass Production: Automated stamping, machining, plating, and 100% functional QC inspection under ISO 9001 quality management guidelines.

Logistics & Shipment: Palletized export packaging, fumigation-free wooden or reinforced corrugated cartons, FOB/CIF shipping terms from port of origin.

To receive factory-direct pricing, test reports, or physical product samples for evaluation, submit specification requirements to the engineering team:

Email: info@hpeslock.com

Minimum Order Quantity (MOQ): 500 sets per finish/model (OEM custom packaging MOQ negotiable)