What are the payment terms?

We accept T/T with 30% deposit and balance against B/L copy, or LC at sight.

What certifications do your products have?

Our products comply with DIN, ISO, and GB standards and are certified under ISO9001:2008.

What is the supply capacity?

Our supply ability is 500 metric tons per month.

Hex Head Self Drilling Roofing Screws, Tek Screw for Roof

Name: Hex Head Self Drilling Roofing Screws, Tek Screw for Roof
Brand: QINGDAO ZONGYU INDUSTRY AND TRADE CO., LTD.
SKU: 761668892

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

US$0.01-1.00

100 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Shape of Head

Hexagon

Model NO.

self drilling screw

Surface Finishing

Zinc Plated

Certification

ISO

Customized

Usage

Metal and Wood

Head

Hex, Wafer, Cross, Pan, Truss Head

Length

20-150mm

Diameter

3.5/4.2/6.3mm

Transport Package

Sea Worth Packing

Specification

all model

Trademark

zongyu

Origin

China

HS Code

7318140090

Production Capacity

1000t/Month

Key features

Self-Drilling Capability: Quickly drills into metal without requiring pilot holes, saving time and project costs.

Versatile Material Options: Available in Carbon Steel, Stainless Steel (304, 316, etc.), and various grades.

Customized Dimensions: Length ranges from 12mm to 200mm; Diameters include 3.5mm, 4.2mm, 4.8mm, 5.5mm, 6.3mm.

Multiple Head Styles: Options include Hex, Wafer, Cross, Pan, and Truss heads for diverse applications.

EPDM Rubber Washer: Features a bonded neoprene rubber EPDM washer for enhanced sealing and weather resistance.

OEM and ODM Services: Full customization available from designs or samples with factory direct pricing.

ISO Certification: Products meet DIN, ISO, GB standards and carry ISO9001:2008 certification.

Wide Application Scope: Ideal for metal roofing, warehouses, carports, sheds, garage doors, and electrical projects.

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: ≤3.59h

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.