Does it come with emergency keys?

Yes, every lock includes two mechanical override keys for emergency access.

Is the lock waterproof?

Yes, the lock is designed to be waterproof and fireproof for reliable performance in various conditions.

What is the warranty period?

The product comes with a 1-year after-sales service warranty.

Zinc Alloy Smart Digital Combination Lock Mechanical Password Keypad Door Handle Lock (20S)

Name: Zinc Alloy Smart Digital Combination Lock Mechanical Password Keypad Door Handle Lock (20S)
Brand: Wuxi GMB International Corporation
SKU: 2321289885

Jiangsu, ChinaWuxi GMB International Corporation

US$18.00

100 Pieces

Sample price:US$18.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

1 Years

Warranty

Years

Model NO.

20S

Material

Zinc Alloy

Type

Smart Mortise Lock

Lock Cylinder Level

Supper B

Lock Cylinder Style

Smart Cylinder

Lock Body Structure

Single Bolt

Lock Body Type

Quad

Key Type

Single Row Anti Dialing Key

Key Functions

Smart Key

Key Level

Surface Treatment

Spray Coating

Color

Black/Silver

Cycle Test

300,000 Cycles

Door Thickness

35mm - 50mm

Waterproof

Yes

Transport Package

Carton Box

Specification

168mmx65mmx25mm

Trademark

GMB

Origin

China

HS Code

83014000

Production Capacity

100, 000

Key features

Mechanical Keyless Operation: Operates flawlessly without batteries in extreme heat, cold, rain, or power outages.

Durable Zinc Alloy Construction: Engineered from solid 304-grade stainless steel to resist picking, drilling, and weather damage.

Flexible Code Configuration: Custom access codes between 4 and 8 digits with easy reprogramming in seconds.

Anti-Panic Deadbolt: Features anti-panic function and is easily reversible for left and right door installation.

Versatile Door Compatibility: Fits wooden and metal doors with thickness ranging from 30mm to 65mm.

Waterproof and Fireproof: Designed to be waterproof and fireproof for enhanced security in various conditions.

High Cycle Durability: Tested for 300,000 cycles to ensure long-term reliability and performance.

Complete Installation Kit: Includes two mechanical override keys and all necessary hardware for installation.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceMulti-language PioneerExperienced Team

Wuxi GMB International Corporation

Jiangsu, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-04-09Nearest Port: ShangHaiAverage Response Time: ≤1.44hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CIF

AI-Powered supplier vetting

SummaryGMB demonstrates broad customization, active product development, documented quality and supplier-service procedures, and 100% finished-product inspection. It reports ISO9001:2015 and ISO14001 management certifications, ERP-based operational management, complaint-handling procedures, and five R&D engineers. The supplier also reports OEM service for well-known brands and participation in the 137th China Import and Export Fair. However, it lacks raw-material traceability, overseas showrooms, overseas agents or branches, ODM services, SDK availability, and CRM/SAP integration. Financial records are indicated for 2022–2024, but the provided information does not include substantive financial performance figures, so financial credibility cannot be fully assessed.

CertificationsThe supplier reports ISO9001:2015 and ISO14001 management-system certifications, plus other product-compliance and sustainability certifications. The specific scope and validity of the additional certifications are not provided.

After-Sales capabilityThe supplier states that it provides best after-sales service, has documented corrective/preventive-action procedures, and maintains a documented customer-complaint process. However, it has no overseas showroom or overseas agents/branches, limiting demonstrated overseas service coverage.

R&D capabilityThe supplier reports new products launched in the past year, five R&D engineers, technical R&D support, and extensive design customization. It does not provide ODM services or an SDK, which limits the demonstrated scope of innovation-related offerings.

Production capacityProduction and quality operations are supported by 100% finished-product inspection, four quality assurance/control inspectors, documented supplier-service procedures, ERP integration across production and logistics, and quality-assurance processes. The absence of raw-material traceability is a stated production-control weakness.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. These repeated capabilities provide clear evidence of broad customization support.

Client casesThe supplier reports OEM service for well-known brands and participation in the 137th China Import and Export Fair. It reports no cooperation with Fortune 500 companies, and no specific customer names or project details are provided.