China Factory Price Serrated Hex/Hex Flange Lock Nut with Lock Washer

Name: China Factory Price Serrated Hex/Hex Flange Lock Nut with Lock Washer
Brand: Tianjin Xinruifeng Fastener Manufacturing Co., Ltd
SKU: 2018770852

Tianjin, ChinaTianjin Xinruifeng Fastener Manufacturing Co., Ltd

US$99.00-400.00

10 kg

Sample price:US$11.00/kg.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Hexagon Head With Flange

Model NO.

M3-52

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, JIS

Grade

10.9

Color

Diverse Colors

Application

Heavy Industry

Finish

Passivated

Size

Customized

Transport Package

Carton

Specification

M3-52

Trademark

Xinruifeng

Origin

Tianjin

HS Code

7318160000

Production Capacity

45000t/Year

Key features

Customized Size Options: Available in customized sizes ranging from M3 to M52 to meet specific project requirements.

Diverse Color Choices: Offered in diverse colors including black, zinc, HDG, and passivated finishes.

High-Grade Material: Constructed from Grade 10.9 Stainless Steel, Carbon Steel, or Brass for durability.

Professional Manufacturer: Direct factory source with over 15 years of production experience in screws and fasteners.

ODM & OEM Service: Customized design services available; ODM and OEM orders are welcome.

Fast Delivery: 10-15 days for in-stock items; 4-5 weeks for non-stock items based on quantity.

Free Sample Offer: Free samples provided, with the buyer responsible for initial freight costs.

24-Hour Response: Professional staff replies to inquiries within 24 working hours with timely support.

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: ≤7.94hTerms 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 are your hot sale products?

Drywall screws, Chipboard screws, Wood Screws, Self Tapping Screws, Self Drilling Screws, Gypsum screws, Roofing screws, Truss Head screws, and other Special screws.

Q:Are you a trading company or manufacturer?

We are a manufacturer. Our production manager has over 15 years of production experience with Screws.

Q:How long is your delivery time?

Generally it is 10-15 days if the goods are in stock. or it is 4-5 weeks if the goods are not in stock, according to quantity.

Q:Do you provide samples? is it free or extra?

Yes, we could offer the sample for free, but the consumer should pay the freight first.

Q:Why choose us?

1) Reply to you within 24 working hours. 2) Experienced staff would like to answer all your questions in time. 3) Customized design is available. ODM&OEM are welcome. 4) Special discounts and protection of sales are provided to our consumers. 5) As an honest exported seller, We are a professional manufacturer, with quality quotations, good service, skilled technicians to ensure our products are finished in high quality and stable features.