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Durable Customized Size Self-Drilling Screws for Construction
US$0.30-1.00
1,000 Pieces
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Zinc PlatedShape of Head
CountersunkModel NO.
Self-Drilling ScrewShape of Groove
PhillipsSurface Finishing
Epoxy CoatingCertification
ISO, GS, RoHS, CECustomized
CustomizedDelivery
20-30 DaysPackag Color
CustomizableThread Standard
Unc/Unf/Unef/Uns/Bsw/Bsf/Metric Coarse/Metric FineCustom Order
Customization by Drawing/SampleODM/OEM
AvailableService
Custom-Made ServiceSize Standard
MetricMaterial Test Certificate
HaveSample
Samples in Stock Are Free with Freight CollectPrice Terms
Fob/CFR/CIF/DDP/DAPQuality Control
100% Quality InspectionApplication2
Connection,Fastening,Concrete Projects,ContainerFunction
Multi-Purpose Fastener ScrewFinish
Epoxy CoatingTail Structure
Self-DrillingTransport Package
Bulk Pack Small BoxedSpecification
M4-M20Trademark
CustomizedOrigin
ChinaHS Code
731816Production Capacity
10000ton/YearKey features
We are a Factory Direct Supplier: Professional manufacturer of concrete screws, factory direct supply without middlemen markup.
Multiple Materials & Surface Finishes: Material: Carbon Steel, SS304, SS316
Surface treatment: Yellow Zinc Plating (Hot Selling), Blue White Zinc Plating, Geomet, Plain
Various Head Types & Thread Options:Head types: Hex Flange Head, Pan Head, Countersunk Head
Threads: Single Thread, High-Low Thread. High-low thread can tap internal thread automatically for firm lock
Negotiable Price: Competitive price with flexible negotiation based on your order quantity.
Strict Quality Assurance: 100% quality guarantee. Rigorous testing ensures reliable performance and compliance with industry standards.
Sufficient Stock & Fast Lead Time: Most sizes available in stock. Lead time: 5-7 days for orders below 5,000 pcs.
The alternating high- and low-profile thread design provides a strong grip, ensuring the fastener remains secure in concrete and brick substrates and stays firmly in place for the long term.
Suitable for fastening to concrete, brick, masonry, and stone substrates; widely used in curtain wall installation, architectural decoration, and civil engineering projects.
Can be used to install guardrails, air conditioner brackets, solar panel mounts, and signage, meeting the needs of various indoor and outdoor hardware mounting projects.
Our fastener factory offers OEM services based on your requirements, drawings, or samples.
Company profile
CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2003-12-05Average Response Time: ≤0.17hTerms of Payment: T/T
AI-Powered supplier vetting
SummaryThe supplier demonstrates established export experience, with 90% of sales from exports and 22 years of exporting. It has ISO9001:2015 certification, raw-material traceability, quality assurance, and 100% finished-product inspection, although inspection is performed by packing staff and only two quality inspectors are reported. Customization is broad, covering samples, designs, full customization, minor customization, and flexible customization. Service strengths include in-stock capability, stated lead times within 15 workdays in both peak and off-season, and multiple payment and quotation terms. Limitations include no overseas warehouse, showroom, agent, branch, or overseas service-country coverage, no Fortune 500 cooperation, no new products launched in the last year, one R&D engineer, no popular-brand OEM, and an undocumented corrective/preventive-action process. Financial credibility cannot be assessed because the provided financial figures are excluded from evaluation.
Supplier typeThe supplier is strongly export-oriented, reporting 90% export sales and 22 years of export experience. It can provide in-stock service and accepts FOB, CIF, CFR, and EXW terms, but reports no overseas warehouse, showroom, agent, branch, or overseas service-country coverage.
CertificationsThe supplier reports an ISO9001:2015 certificate for both sustainable development management and management systems, plus other product compliance or sustainability certifications. The specific additional certifications are not identified, so the evidence supports ISO9001 holding but not broader certification strength.
R&D capabilityThe supplier reports one R&D engineer and no new products launched during the previous year. It also reports no available SDK and no popular-brand OEM capability, which indicates limited documented innovation evidence.
Production capacityProduction-related evidence includes raw-material traceability, 100% finished-product inspection, quality assurance, four own-brand quality-control capabilities, inventory capacity, and lead times within 15 workdays in both peak and off-season. Only two quality inspectors are reported, and finished products are checked by packing staff, so production capability is positive but quality-control depth is limited.
Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of broad customization capability.
Product Q&A
Q:Who are we?
A:
We are a factory based in Zhejiang, China, with over 20 years of experience in producing and exporting hardware fasteners.
Q:What products do you offer?
A:
We supply screws, bolts, nuts, washers, anchors,stamping parts and tool.
Q:How do you ensure quality?
A:
Our professional QC team inspects every item throughout production and before packaging.
Q:Do you provide samples? Are they free?
A:
Yes, we provide free samples for quality testing, but customers cover the express charges.
Q:What are your payment terms?
A:
Our standard terms: 30% T/T deposit, with the remaining balance payable against the draft copy of B/L.
Send Inquiry
*To:
Qewitco Fasteners Co., Ltd
Qewitco Fasteners Co., Ltd*Content:
Supplier replies will be sent to your registered email
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