What door thickness does this lock fit?

It fits doors with a thickness between 35mm and 50mm.

How many keys come with the lock?

The set includes 3pcs brass keys.

What is the lead time for production?

Peak season lead time is 1-3 months, and off-season is one month.

Fashion Black Brilliant Chrome Aluminum Quiet Door Lock Handle

Name: Fashion Black Brilliant Chrome Aluminum Quiet Door Lock Handle
Brand: WITHSAFE HARDWARE CO., LTD
SKU: 915626945

Zhejiang, ChinaWITHSAFE HARDWARE CO., LTD

US$7.00

500-1,999 Pieces

US$6.70

2,000+ Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Material

Aluminun

Type

Key Lock

Style

Modern

Shape

Mortise Door Lock

Part

Lock

Backset

45mm

Door Thickness Fits

35-50mm

Lock Cylinder Length

70mm

Usage

Household Door Locks, Bedroom

Size

85mm or 72mm

Lock

Without Lock

Color

Ab, PC, Sc, Pb

Transport Package

Box+Carton

Specification

Trademark

WITHSAFE / OEM

Origin

China, Wenzhou

HS Code

830242000

Production Capacity

100, 000prs/Month

Key features

Silent Lockbody Included: Complete set includes 58x45mm silent lockbody for quiet operation.

Durable Aluminum Material: Constructed with aluminum rose and handle featuring oxidation finish.

Customizable Size Options: Available in 85mm or 72mm sizes to fit various door requirements.

Multiple Color Choices: Offered in AB, PC, SC, and PB color options.

Versatile Finish Styles: Available in Black, White, Grey, and White oxidation finishes.

Standard Backset Design: Features a 45mm backset suitable for standard door installations.

Wide Door Thickness Fit: Accommodates door thickness ranging from 35mm to 50mm.

Complete Key Set: Includes 3pcs brass keys with S-70mm cylinder.

Company profile

WITHSAFE HARDWARE CO., LTD

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2011-08-12Nearest Port: NINGBO,SHANGHAIAverage Response Time: ≤5.98hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryWITHSAFE HARDWARE CO., LIMITED is a China-based limited company in Zhejiang, described as both a trading company and manufacturer/factory, specializing in door locks and hardware systems for more than 10 years. Its product range includes door locks, handles, cylinders, hinges, bolts, stops, and related hardware. The supplier reports ISO 9001, ISO 20000, and QC 080000 certifications, three production lines, 6–10 quality-control staff, and annual output of 300,000 sets. It exports to multiple global regions, with exports representing 90% of total sales. Evidence supports established export operations, relevant manufacturing capacity, and documented management certifications. However, the provided information does not sufficiently verify after-sales procedures, financial credibility, customization services, or identifiable customer cases. Innovation evidence is present but limited to product updates, designs, and automated knob-lock equipment.

Supplier typeThe supplier is identified as a limited company in Zhejiang, China, and is described both as a trading company and manufacturer/factory. Its stated specialization is door locks and door hardware systems, with more than 10 years of industry involvement.

CertificationsThe supplier reports holding ISO 9001, ISO 20000, and QC 080000 management-system certifications. These are explicit certifications in the provided information, although certificate scope, issuing bodies, and validity dates are not supplied.

R&D capabilityEvidence of innovation includes innovative styles, unique packaging, quickly updated products, and the stated use of automated knob-lock production equipment. However, the reported R&D engineer experience is under five years, and no information is provided on patents, dedicated R&D investment, or a formal innovation pipeline.

Production capacityThe supplier reports three production lines, 6–10 quality-control staff, annual production of 300,000 sets of door and furniture hardware, and automated knob-lock production equipment. It also states one-month off-peak lead times and two-to-three-month peak-season lead times, indicating established production operations, although capacity utilization and independent verification are not provided.