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Carbon Steel Fastener Hex Flange Concrete Screw for Masonry Construction
US$0.01-0.17
1,000 Pieces
Sample price:US$10.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Stainless/Carbon SteelType
Concrete/Masonry ScrewModel NO.
Hex Flange Head Concrete ScrewGroove
SlottedConnection
Common ConnectionHead Style
HexagonalStandard
DIN, GB, ANSI, BSW, JIS, GOSTDelivery
5-15 DaysPackag Color
CustomizableThread Standard
Unc/Unf/Unef/Uns/Bsw/Bsf/Metric Coarse/Metric FineTail Structure
DiamondThread Structure
Hi-Lo Thread,CustomizedCustom 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 InspectionFunction
Multi-Purpose Fastener ScrewApplication2
Connection,Fastening,Concrete Projects,ContainerTransport Package
Bulk Pack Small BoxedSpecification
Product description in private chatTrademark
QewitcoOrigin
ChinaHS Code
731816Production Capacity
10000ton/YearKey features
Dual-Substrate Design: Manufactured with carbon steel and 304 stainless steel for enhanced durability.
Three Surface Finishes: Available in Blue Ruspert, Raw Carbon Steel, and 304 Stainless Steel.
Direct Drilling Capability: No plastic sleeves needed; drills directly into aerated concrete, bricks, and masonry.
Integrated Flange Washer: Wide hex flange expands contact area and prevents crushing of thin materials.
Customization Available: Customization by drawing or sample available for length, coating, and dimensions.
T-Shaped Cutting Tip: Multi-cutting edges crush masonry aggregate for easy drilling into thick walls.
Heat-Treated Hardened Shank: Improves toughness to resist breakage under repeated driving into concrete.
Every finished screw passes hardness, tensile force and anti-rust quality inspection.
Flange head avoids sinking too deep and protects curtain wall panel surfaces.
Specially developed for curtain wall, steel keel and building wall fixing projects.
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: ≤1.19hTerms 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:What is the core advantage of hi-low thread design?
A:
The uneven thread depth enhances friction to prevent loosening on concrete and brick substrates.
Q:Do you provide samples? Are they free?
A:
Yes, we provide free samples for quality testing, but customers cover the express charges.
Q:Why adopt hex flange head for curtain wall use?
A:
The flange expands pressure-bearing area, fixing curtain wall panels more firmly without surface damage.
Send Inquiry
*To:
Qewitco Fasteners Co., Ltd
Qewitco Fasteners Co., Ltd*Content:
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