What is the lead time?

Peak season and off-season lead times are both within 15 workdays.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the minimum order quantity?

The minimum order quantity is 1 piece.

Combo Lock Safety Deadbolt Door Lock with Tubular Knobset Combination

Name: Combo Lock Safety Deadbolt Door Lock with Tubular Knobset Combination
Brand: Fujian Chainfun Electronic Technology Co., Ltd.
SKU: 2010024865

Fujian, ChinaFujian Chainfun Electronic Technology Co., Ltd.

US$3.80

100-499 Pieces

US$3.50

500-999 Pieces

US$3.20

1,000+ Pieces

Sample price:US$15.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Free Spart Parts

Warranty

12 Months

Model NO.

D101S

Material

Zinc Alloy

Type

Electronic

Style

European

Shape

Stay Locked

Anti-theft Standard

Part

Lock

Backset

60mm

Door Thickness Fits

1-3/8"(35mm) to 1-3/4" (45mm)

Lock Cylinder Length

70mm

Usage

Household Door Locks, Bedroom

Function

Et,Bk,PS,St,Cl,Ht,Dm

Transport Package

Standard Export Packing

Specification

30X14X20 cm

Trademark

ChainFun

Origin

Fujian, China

HS Code

8301400000

Production Capacity

200000

Key features

High Durability: Cylinder tested for more than 200,000 cycles.

Comprehensive Warranty: 1-2 year warranty period covering all products.

Quality Assurance: Pre-production samples and final inspections before shipment.

Versatile Applications: Suitable for apartments, hotels, offices, schools, and stores.

Diverse Finishes: Available in SS, SN, AB, AC, ORB, PB, and CP finishes.

Flexible Customization: Full, minor, and flexible customization options available.

Wide Door Compatibility: Fits door thickness from 1-3/8" to 1-3/4" (35mm-45mm).

ISO Certified: Manufactured under ISO9001:2015 quality management system.

Company profile

High Repeat Buyers ChoiceCustomization from SamplesR&D CapabilitiesDigital Management Enterprise

Fujian Chainfun Electronic Technology Co., Ltd.

Fujian, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Xiamen PortAverage Response Time: ≤6.17h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryFujian Chainfun Electronic Technology Co., Ltd. is a China-based limited trading company established in 2019 with nine employees. It reports professional technical R&D capability, customization from designs and samples, and annual smart door-lock productivity of 200,000 sets. However, it does not provide 3D software design, ODM, SDK, or popular-brand OEM services, and reported no new products in the past year. Export sales are stated at 90%, with six years of exporting experience, but another record states that no valid import/export license is held. Service-quality controls are weakly documented: complaint handling and corrective/preventive actions have no written procedures or records. The supplier has no overseas warehouses, showrooms, agents, branches, or offline trade-show experience. No certification, financial-strength, or customer-case evidence is provided.

After-Sales capabilityThe supplier has no overseas warehouse, showroom, agent, or branch, and has not participated in offline trade shows. Its complaint-handling and corrective/preventive-action mechanisms have no written procedures or records, although relevant service-capability records exist; this indicates a documented-service weakness.

R&D capabilityThe supplier is described as having professional technical R&D capability and offering multiple customization modes, but it reported no new products during the past year and does not provide ODM services, SDK availability, or 3D software design services. The evidence therefore shows technical capability but limited recent product-development breadth.

Production capacityAnnual productivity is stated as 200,000 smart door-lock sets, with peak- and off-season lead times both within 15 workdays. However, the company is classified as a trading company, and the slices do not establish whether this capacity is owned manufacturing capacity or supplied through partners.

Customization capabilityThe supplier explicitly offers full, minor, and flexible customization, including customization from customer designs and samples. This is consistent across the R&D and design-service records and demonstrates broad stated customization support.

Product Q&A

Q:Who are you?

We are based in Zhejiang, China, started in 2020, with 101-200 office staff. We sell primarily to the Domestic Market (90%), Southern Europe (4%), and Mid East (2%).

Q:How do you guarantee quality?

We always produce a pre-production sample before mass production and conduct a final inspection before shipment.

Q:What products can you buy from us?

We offer Hotel Door Locks, Fingerprint Door Locks, Airbnb Locks, and Electromagnetic Door Locks.

Q:Why should you buy from us?

Established in June 2020, Chainfun is a leading manufacturer with over 80 patents and ISO9001:2008 certification.

Q:What services can you provide?

We provide a 1-2 year warranty period for all our products.