What are the lead times for production and delivery?

The average lead time is one month for both peak season and off-season. We ensure timely delivery and provide excellent service to meet your project schedules.

What certifications do your drywall screws hold?

Our products are certified with ISO, GS, RoHS, and CE, ensuring they meet international quality and safety standards for construction and fastener applications.

How are the screws packed for shipment?

We offer small box packing (small box + carton + plywood/wooden pallet, 20kg/ctn) and bulk packing (plastic bag + carton + plywood/wooden pallet, 20kg/ctn). Tailor-made packing is also available upon request.

Drywall Screw Color Zinc/ Black Phosphated Coated

Name: Drywall Screw Color Zinc/ Black Phosphated Coated
Brand: QINGDAO ZONGYU INDUSTRY AND TRADE CO., LTD.
SKU: 2030144922

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 drywall screw

Surface Finishing

Zinc Plated

Certification

ISO, GS, RoHS, CE

Customized

Thread

Fine or Coarse Thread

Transport Package

Bulk in Carton or Box

Specification

Dia. 3-5mm

Trademark

Origin

China

HS Code

7318140000

Production Capacity

1000ton/Month

Key features

Customizable Thread Type: Offers both fine and coarse thread options to suit specific installation needs.

Versatile Application: Suitable for connecting gypsum board to metal keels (max 0.9mm) or wooden structures.

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

Robust Corrosion Resistance: Undergoes salt spray test for 48 hours with options like zinc plating or phosphating.

Wide Size Range: Available in diameters 3-5mm and lengths from 13mm to 200mm for diverse projects.

Self-Tapping Design: Features a sharp tip and smooth threads for easy self-tapping into various materials.

Certified Quality: Products hold ISO, GS, RoHS, and CE certifications ensuring international standards.

Factory Direct Supply: Direct from manufacturer with annual productivity over 10,000 tons and competitive pricing.

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: ≤3.57h

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.

Product Q&A

Q:What are the available thread types for these drywall screws?

We provide both fine thread and coarse thread options. Fine threads are suitable for fixing plasterboard to iron sheets with a thickness of no more than 0.9mm, while coarse threads are ideal for wooden structures.

Q:What materials and hardness levels do your drywall screws have?

Our screws are made from hardened Carbon Steel C1022A. The surface hardness ranges from 560-653HV, and the core hardness is 289-449HV, ensuring durability and strength.

Q:Can the screws be customized according to specific requirements?

Yes, customization is available. We can tailor the thread type (fine or coarse) and other specifications based on client requests. OEM and ODM services are also supported.

Q:What surface treatments are available for these screws?

We offer various surface treatments including black phosphated, grey phosphated, galvanized, HDG, zinc, yellow zinc, and painted finishes to meet different environmental and aesthetic needs.

Q:What is the minimum order quantity (MOQ) for these products?

The minimum order quantity is 1 ton. We support both small box packing and bulk packing options to accommodate different order sizes.