What is the lead time for production?

The average lead time is one month for both peak season and off-season periods.

Is OEM/ODM service available?

Yes, we provide OEM and ODM services, including customization from designs and samples.

What certifications do the products have?

Our products are certified with ISO, GS, RoHS, and CE standards.

Hot-Sale Products Black Phosphated Drywall Screw blue White Zinc Coated

Name: Hot-Sale Products Black Phosphated Drywall Screw blue White Zinc Coated
Brand: QINGDAO ZONGYU INDUSTRY AND TRADE CO., LTD.
SKU: 2026803322

Shandong, ChinaQINGDAO ZONGYU INDUSTRY AND TRADE CO., LTD.

US$800.00-1,000.00

3 Tons

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Shape of Head

Round

Model NO.

C1022A

Surface Finishing

Zinc Plated

Certification

ISO, GS, RoHS, CE

Customized

Thread

Fine or Coarse Thread

Sharp

Self-Tapping/Self-Drilling/Screw

Color

Black/Yellow/Silver

Package

Customized

Transport Package

Bulk in Carton or Box

Specification

Dia. 3-5mm

Trademark

Origin

China

HS Code

7318140000

Production Capacity

1000ton/Month

Key features

Customizable Colors: Available in Black, Yellow, and Silver finishes to meet specific project requirements.

Custom Thread Options: Offers both fine and coarse thread configurations for versatile application compatibility.

High Hardness Material: Made from hardened Carbon Steel C1022A with surface hardness of 560-653HV.

Corrosion Resistance: Undergoes 48H salt spray test with options for black phosphated, galvanized, or zinc coatings.

Wide Size Range: Available in diameters 3.5-4.8mm and lengths 13-200mm for various installation needs.

Self-Tapping Design: Features sharp tips and smooth threads for efficient self-tapping into gypsum board and wood.

Professional Manufacturing: Produced by a factory with over 10 years experience and SGS audited quality control.

Flexible Packaging: Supports small box, bulk packing, and tailor-made packaging according to client requests.

Company profile

Importers and ExportersHigh Repeat Buyers ChoicePatents AwardedNational Award received

QINGDAO ZONGYU INDUSTRY AND TRADE CO., LTD.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 5 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.55h

AI-Powered supplier vetting

SummaryThe supplier is a Qingdao-based manufacturer and trading company with a broad registered business scope covering mechanical equipment, metal products, automotive parts, plastic products, building materials, and import/export activities. It reports ISO 9001, 14001, and 18001 certification history, eight production lines, 50 quality-control staff, and stated production capacity for several nail categories. The supplier offers customization from designs and samples, ODM, and OEM services for well-known brands. However, it reported no new products in the past year, lacks overseas warehouses, showrooms, agents, or branches, and has weak documented service-management controls: no written service-assessment or corrective-action procedures and no complaint-handling records. Financial information is identified for 2021–2023, but the slices do not provide performance values, so financial credibility cannot be fully assessed.

Supplier typeThe supplier operates as a manufacturer and trading company: its registered scope includes sales and import/export activities, while its factory information reports eight production lines and product-specific output. Its company description also states more than 20 years of development and business relationships across Europe, America, Southeast Asia, and Africa.

CertificationsThe supplier states that it passed ISO 9001, ISO 14001, and ISO 18001 international management-system certifications in 2001. This is explicit certification evidence, although the slice does not provide current certificate validity or renewal details.

After-Sales capabilityThe supplier has a complaint-handling procedure but no written complaint records, and it lacks written procedures or records for service-capability assessment and corrective/preventive actions. It has participated in the Canton Fair but reports no overseas warehouses, showrooms, agents, or branches, limiting evidence of structured overseas after-sales support.

R&D capabilityThe supplier reports ODM capability, an available SDK, and one internationally recognized design award. However, it also states that no new products were developed in the past year; this indicates some design and development resources but limited recent product-innovation evidence.

Production capacityThe supplier reports eight production lines, 50 quality-control staff, and stated annual outputs of 10,000 tons each for U-type, roofing, twisted, clout, and common nails. It also reports a one-month average lead time in both peak and off-season, supporting evidence of established production capacity, though the stated output figures are supplier-reported and not independently verified.

Customization capabilityThe supplier explicitly provides customization from customer designs and samples, ODM services, and OEM services for well-known brands. These statements directly demonstrate multiple forms of customization and contract-manufacturing capability.