Do you offer free samples?

Yes, free samples are available upon request.

What payment terms do you accept?

We accept LC, T/T, PayPal, and Western Union.

Where is your factory located?

Our factories are located in Tianjin, China, with convenient access to Tianjin Port and Airport.

Zinc Plated Hex Head EPDM Washer Self Drilling Tek Screw Roofing Screw

Name: Zinc Plated Hex Head EPDM Washer Self Drilling Tek Screw Roofing Screw
Brand: Tianjin Xinruifeng Fastener Manufacturing Co., Ltd
SKU: 1940744591

Tianjin, ChinaTianjin Xinruifeng Fastener Manufacturing Co., Ltd

US$0.70-1.50

1 kg

Sample price:US$2.00/kg.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Hexagon Head

Model NO.

XRF-129

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, GB, ANSI

Diameter

M4.2(#8) M4.8(#10) M5.5(#12) M6.3(#14)

Length

11mm to 150mm

Surface Treatment

Yellow/White Zinc Plated

Shipping

Sea Freight / Land Freight / Air Freight

Certificate

ISO9001:2008, En 14592:2008+A1:2012

Delivery Time

15-30 Days

Sample

Free

Regular Bulk

25kg/Bag; 25kg/Carton, or Others

Customized

Transport Package

Ordinary Packaging, Color Box,Wooden Box Packaging

Specification

M4.2(#8) M4.8(#10) M5.5(#12) M6.3(#14)

Trademark

Xinruifeng

Origin

Tianjin, China

HS Code

7317000000

Production Capacity

40000 Tons/Year

Key features

Self-Drilling Capability: Eliminates need for pre-drilled holes by performing drilling, tapping, and fastening in one action.

Versatile Material Options: Available in Stainless Steel or Carbon Steel for various corrosion resistance needs.

Wide Diameter Range: Offers sizes from M4.2 (#8) to M6.3 (#14) to suit different fastening requirements.

Customized Lengths: Lengths available from 11mm to 150mm to match specific project depths.

Surface Treatment Options: Provides Yellow or White Zinc Plated finishes for enhanced durability.

OEM and ODM Support: Accepts custom orders for specialized manufacturing and design requirements.

ISO9001 Certified Quality: Manufactured under ISO9001:2008 and EN 14592:2008+A1:2012 standards.

Free Sample Availability: Customers can request free samples to verify product quality before bulk order.

Company profile

High Repeat Buyers ChoiceQuality AssuranceR&D CapabilitiesImporters and Exporters

Tianjin Xinruifeng Fastener Manufacturing Co., Ltd

Tianjin, China

Business Type: Manufacturer/FactoryExport Year: 2022-03-07Nearest Port: XingangAverage Response Time: ≤7.57hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, Others

AI-Powered supplier vetting

SummaryTianjin Xinruifeng Fastener Manufacturing Co., Ltd. is identified as a combined company engaged in fastener manufacturing, sales, wholesale, equipment-related activities, and import/export. The supplier reports broad product coverage, in-house heat treatment, design and development experience, customization and ODM services, and annual production capacity of up to 20,000 tons. It states that it holds CE certification for drywall screws and receives regular SGS factory audits. Service procedures exist for corrective actions and complaint handling, with records, while service-capability procedures lack records. The supplier reports OEM service for well-known brands and domestic supply to Xinfangsheng, but no SDK is available. Financial and sustainability records are referenced by year, but the provided information does not establish their quality or adequacy. Customer examples and export markets are disclosed, although specific customer performance evidence is limited.

Supplier typeThe supplier is described as Tianjin Xinruifeng Fastener Manufacturing Co., Ltd. and as a combined company. Its stated scope includes fastener and hardware manufacturing, sales, wholesale, equipment activities, and import/export, indicating an integrated manufacturing and trading profile rather than a pure distributor.

CertificationsThe supplier explicitly states that it holds CE certification for drywall screws and that SGS conducts regular factory audits. This provides direct evidence of certification and external audit activity, although certification coverage beyond drywall screws is not stated.

After-Sales capabilityThe supplier has clear procedures with records for corrective and preventive actions and for handling customer complaints effectively. It also claims 24-hour online service, while its written service-capability procedures have no records; therefore, the available evidence supports complaint and corrective-action capability but not fully documented service-system execution.

R&D capabilityThe supplier reports R&D capability, new products during the past year, design and development experience, and multiple design-service options. However, it explicitly has no available SDK, so the evidence supports product and customization development but not SDK-based innovation support.

Production capacityThe supplier states that it has in-house heat treatment, professional technical and production experience, a broad fastener product range, and annual production capacity of up to 20,000 tons. These statements directly support substantial manufacturing capability and delivery capacity.

Customization capabilityThe supplier offers customization from samples and designs, full and minor customization, flexible customization, and ODM services. It also claims experience in designing and producing products, providing explicit evidence of broad customization capability.

Client casesThe supplier reports OEM service for well-known brands, identifies Xinfangsheng as a domestic exclusive-supply customer, and states that customers are located globally, with Russia and India as leading markets. These are identifiable customer and market references, although no independently verified case details or performance metrics are provided.

Product Q&A

Q:What materials are available for this screw?

The screws are available in Stainless Steel or Carbon Steel.

Q:What is the delivery time for bulk orders?

The standard delivery time is 15-30 days. During peak season, it may take 1-3 months, while off-season is about one month.

Q:Can I customize the size and surface treatment?

Yes, we accept OEM and ODM. Diameters range from M4.2 to M6.3, lengths from 11mm to 150mm, and surface treatments include Yellow or White Zinc Plated.

Q:What are the main applications for these self-drilling screws?

They are ideal for metal roofing, HVAC ductwork, steel frames, wood construction, and plastic piping applications.

Q:What are the packaging options for bulk orders?

Standard packaging is 25kg per bag or carton, but other custom packaging options are available.