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304 Stainless Steel Round Coupling Nut Extension Long Column Standoff Spacer Round Cylinder Connecting
US$0.01-0.15
100 Pieces
Product profile
Customization
AvailableMaterial
Carbon Steel, Stainless SteelType
Round HeadModel NO.
CH-NR004Connection
Common BoltHead Style
RoundStandard
DIN, ANSI, GB, JIS, GOST, BSWGrade
201, 304, 316, A2, A4Product Name
Round Cylinder Connecting Coupling NutCertificate
ISO9001:2008, SGS Testing Report & RoHSNut Type
Coupling NutOEM
AvailableTransport Package
General Export PackageSpecification
M4-M64Trademark
CONGHUIOrigin
Guangdong, ChinaHS Code
7318160000Production Capacity
1000000PCS/WeekKey features
Wide Material Selection: Available in Carbon Steel, Stainless Steel (201/304/316), Titanium, Aluminum, and Brass.
Custom Size Options: Sizes range from M3 to M20, or can be customized according to specific customer requests.
Multiple Finishing Options: Offers Zn-plated, Ni-plated, Tin-plated, Anodized, Black Oxide, and other surface treatments.
OEM Service Available: Supports OEM customization for product names and specifications with ISO9001 and SGS certificates.
Fast Delivery Time: Delivery takes about 7-15 days after details are confirmed, with fast options for urgent orders.
Free Sample Service: Free samples provided for quality reference; customers only need to cover shipping costs.
Quality Guarantee: Replacement at our cost for rejected products if parts do not match PO drawings.
20 Years Experience: Professional manufacturer with 20 years of production and management experience in fasteners.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤3.20h
AI-Powered supplier vetting
SummaryShenzhen Conghui Precision Hardware Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory, supplying fasteners, hardware, and tools. It demonstrates broad customization and ODM capabilities, reports new products within the past year, and provides OEM services for well-known brands. Service processes for corrective actions and customer complaints are documented and supported by records, while supplier-service qualification procedures exist but lack records. Production-related evidence is mixed: reported lead time is within 15 working days in both peak and off-season, but no in-stock, overseas warehouse, overseas branch/agent, or overseas showroom capability is reported. Financial period information is present for three years, but no financial performance details are provided. Audit information identifies TÜV Rheinland, although the audit result is recorded as 0 and the report validity ended on 2025-02-23. Raw-material traceability, quality assurance...
Supplier typeThe supplier is identified as both a trading company and manufacturer/factory, with limited-company ownership and a business scope covering molds, bicycle accessories, forged and stamped parts, auto and motorcycle parts, and hardware products. Its stated product scope is fasteners, hardware, and tools, indicating a supplier with both manufacturing and trading characteristics.
After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and customer complaints. It accepts multiple service quotation and payment terms, but has no overseas agents or branches, no overseas showroom, no overseas warehouse, and reports service coverage in 0 countries, limiting evidence of international after-sales reach.
R&D capabilityThe supplier reports new products during the past year, provides ODM services, and offers multiple design-development options. It does not have an available SDK, but the evidence supports product and design innovation capability for physical products.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, directly supporting a broad customization capability.
Client casesThe supplier reports providing OEM services for well-known brands, which is direct evidence of at least one type of customer engagement. However, no customer names, project details, volumes, or independently verifiable case records are provided, so the breadth and strength of its customer case history cannot be fully assessed.
Product Q&A
Q:Are you a trading company or a manufacturer?
A:
We are an Industry & Trade Company.
Q:What is your product range?
A:
Our product range includes screws, nuts, knobs, bolts, washers, rivets, anchors, and CNC parts. Non-standard products are also accepted.
Q:Why should I choose you? What are your advantages?
A:
We are a professional manufacturer with 20 years of experience in fasteners. We provide solutions in production design, process, packaging, and after-sale service, with customer satisfaction as our sole pursuit.
Q:Which industry fields are your products suitable for?
A:
Our products are widely used in machine assembling, electronics, constructional engineering, furniture, cabinets, etc.
Q:What materials are available for these coupling nuts?
A:
Materials include Stainless Steel (SS201, SS303, SS304, SS316, SS410, SS420), Carbon Steel (4.8, 6.8, 8.8, 10.9, 12.9), Titanium (GR1-GR5), Aluminum, and Brass.
Send Inquiry
*To:
Shenzhen Conghui Precision Hardware Co., Ltd.
Shenzhen Conghui Precision Hardware Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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