What finishes are available for this lock?

Available finishes include PB, CP, AB, AC, SS, SB, White, and Black.

What is the adjustable door thickness range?

The lock supports door thickness from 35mm to 50mm (1-3/8 to 1-3/4 inches).

What is the backset adjustment range?

The backset is adjustable to 60mm or 70mm.

Door Knob Hardware Lock Tubular Handle Round Knob Lock

Name: Door Knob Hardware Lock Tubular Handle Round Knob Lock
Brand: UNION-POWER (JM) METALS MFG. CO., LTD.
SKU: 927117105

Guangdong, ChinaUNION-POWER (JM) METALS MFG. CO., LTD.

US$2.00-3.00

1,000 Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Material

Brass

Type

Bull-head

Model NO.

5551SS3

Shape

Tubular

Style

European Antique Style

Lock

With Lock

Installation Type

Surface Installation

Surface Treatment

Mirror-polished

Color

Gold

Usage

Door, Furniture

Customized

Cylinder

Heavy-Duty Brass Cylinder

Rose Dia.

65mm

Knob

Brass W/Polish Brass

Latch Bolt

60mm/70mm Adjustable

Door Thickness

35-50 Ajustable

Transport Package

Carton

Specification

Knob Lock

Trademark

Africo

Origin

Key features

Durable Brass Material: Constructed from high-quality brass with mirror-polished or stainless steel finish.

Adjustable Door Thickness: Accommodates door thickness ranging from 35mm to 50mm (1-3/8 to 1-3/4 inches).

Flexible Customization: Offers minor and flexible customization options including cylinder, rose, and latch bolt.

OEM/ODM Service: Full OEM and ODM services available with over 20 years of industry expertise.

European Antique Style: Features a classic European antique design suitable for bathroom and privacy doors.

Quality Assurance: Every product undergoes rigorous testing before shipment to ensure safety and quality.

Multiple Finish Options: Available in various finishes including PB, CP, AB, AC, SS, SB, White, and Black.

Versatile Installation: Designed for surface installation on doors and furniture with adjustable backset.

Company profile

High Repeat Buyers ChoiceODM Services3D Software DesignQA/QC Inspectors

UNION-POWER (JM) METALS MFG. CO., LTD.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Flexible customization, etc. CertifiedExport Year: 3 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier offering door and furniture hardware, with 3D design, ODM, OEM, sample-based, minor, and flexible customization services. It reports new products within the past year and operates two production lines with 6–10 quality-control staff, an annual output stated as 5,000,000 door-lock boxes, and a one-month off-peak lead time. Export activity is substantial, with Europe listed as the primary market and 90% of sales reportedly from exports. However, the evidence shows no valid manufacturing-capacity contract with associated subcontractors, no stock, overseas warehouse, or overseas showroom capability, and significant quality-system gaps: no quality assurance, no raw-material traceability, and no written complaint-handling records. Financial information is reported for 2021–2023, but no financial results are provided. No certification or customer-case evidence is supplied.

Supplier typeThe supplier is explicitly described as a professional technical supplier. Its stated business and product scopes cover hardware products, door hardware, furniture hardware, furniture parts, household appliances, lighting, plastics, pneumatic and power tools, and related machinery.

After-Sales capabilityThe supplier reports no in-stock service, overseas warehouse, or overseas showroom capability. It also has no written procedures or records for handling customer complaints, although a corrective and preventive action procedure exists without written records.

R&D capabilityThe supplier is identified as a professional technical supplier, provides 3D software design, offers ODM services, and reports new products within the past year. It does not have an available SDK, but the available evidence supports active product-development and design capability.

Production capacityThe supplier operates polishing, drilling, punching, auto-assembly, and auto-installation equipment, with two production lines and 6–10 quality-control staff. It reports 5,000,000 door-lock boxes of annual output and a one-month off-peak lead time, but has no valid manufacturing-capacity contract with associated subcontractors and no stock capability.

Customization capabilityThe supplier explicitly offers customization from samples, minor customization, and flexible customization, alongside 3D software design, ODM, and OEM services for popular brands. These statements provide direct evidence of broad customization capability.