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Flange Head Tek Screws/Hex Flange Self Drilling Screws/Metal Roofing Screws
US$0.02-0.08
10,000 Pieces
Sample price:US$0.50/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon SteelShape of Head
HexagonModel NO.
4.2-6.3mmSurface Finishing
Zinc PlatedCertification
ISO, GS, RoHS, CECustomized
Non-CustomizedSize
Customizable SizeSurface Treatment
Electric GalvanizedColour
Color Zinc & Blue & White ZincShape
Screw with EarsTransport Package
Bag Packaging/Case Packing/PalletizingSpecification
3.2-10Trademark
SANJUOrigin
HebeiHS Code
7318159090Production Capacity
500000000Key features
Self Drilling & Tapping: Combines drilling and tapping in one step for fast construction efficiency.
Integrated Waterproof Flange: Tight-fitting flange surface eliminates need for separate washers and ensures waterproofing.
Anti-Loosening Design: Large contact area prevents loosening or twisting through thin plates.
Customizable Sizes: Available in various thread diameters from ST4.2 to ST6.3 with multiple length options.
Customizable Surface Treatment: Options include Electric Galvanized, Zinc, Blue, and White Zinc finishes.
Customizable Shape: Available as screws with ears for specific application needs.
ISO & CE Certified: Meets international standards including ISO, GS, RoHS, and CE certifications.
OEM & ODM Services: Manufacturer supports both OEM and ODM customization with 2 R&D engineers.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2019-04-04 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤0.69h CertifiedTerms of Payment: T/T
AI-Powered supplier vetting
SummaryQINGHE SANJU TRADING CO., LTD. is a China-based limited company established in 2019, operating from Hebei with 15 employees. The supplier describes itself as an integrated manufacturing and trading company and reports four production lines, a 1,200 m² manufacturing area, milling cutter output of 3,000,000 pieces, and export activity across Africa, Southeast Asia/Mideast, Europe, and North America. It states that 71%–90% of sales are exports and offers FOB, CIF, and CFR quotation terms. The supplier claims export experience, after-sales service, broad product coverage, and cooperation with customers in multiple countries. However, its management-system certification is listed as NIL, and the available information does not substantiate specific customer references, formal innovation programs, or detailed customization capabilities.
Supplier typeThe supplier is identified as a combined business entity and describes itself as an integrated industry-and-trade company providing manufacturing, sales, and purchasing follow-up services. This indicates a hybrid manufacturing and trading model rather than a pure trading-only operation.
CertificationsThe supplier’s certification of management systems is explicitly recorded as NIL. Therefore, no management-system certification is evidenced in the provided information.
After-Sales capabilityThe supplier explicitly claims good after-sales service and describes a range of follow-up services intended to support procurement, distribution, and savings management requirements. These statements provide positive evidence of an after-sales service offering, although no service process or performance metrics are supplied.
Production capacityThe supplier reports an integrated manufacturing-and-sales operation, a 1,200 m² manufacturing area, four production lines, and annual milling cutter output of 3,000,000 pieces. It also states lead times of within 15 working days during off-peak periods and one month during peak periods, providing explicit evidence of established production capacity and defined fulfillment timelines.
Product Q&A
Q:What materials are used for these screws?
A:
The screws are made from Carbon Steel with options for Zinc Plated, Electric Galvanized, and other surface treatments.
Q:What are the available sizes?
A:
Available thread diameters include ST4.2, ST4.8, ST5.5, and ST6.3 with lengths ranging from 13mm to 75mm.
Q:Can the screws be customized?
A:
Yes, we offer customizable sizes, surface treatments (Zinc, Blue, White Zinc), and shapes (screws with ears).
Q:What are the main application scenarios?
A:
Ideal for color steel tiles, thin iron sheets, thicker steel plates, and outdoor waterproof scenarios requiring high efficiency.
Q:What certifications do the products have?
A:
Our products are certified under ISO, GS, RoHS, and CE standards.
Send Inquiry
*To:
QINGHE SANJU TRADING CO., LTD.
QINGHE SANJU TRADING CO., LTD.*Content:
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