Are you a manufacturer or trading company?

Sinofastener is a manufacturer of fasteners with many years of experience in bolts, nuts, threaded rods, and washers in Ningbo, China.

Do you provide OEM/ODM services?

Yes, we accept OEM and ODM services.

We offer high-quality products with reasonable prices. Please send an inquiry, and we will quote you a price immediately.

Easy-to-Install Dowel Screw for Both Corrugated Metal & Solar Installations

Name: Easy-to-Install Dowel Screw for Both Corrugated Metal & Solar Installations
Brand: Ningbo Zhonglian Fastener Manufacture Co., Ltd.
SKU: 2096886865

Zhejiang, ChinaNingbo Zhonglian Fastener Manufacture Co., Ltd.

US$0.05

10,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Self Tapping

Model NO.

Solar Mounting

Groove

Hexagon

Connection

Common Bolt

Head Style

Counter Sunk Bolt

Standard

DIN

Grade

4.8

Certification

ISO9001

MOQ

10000PCS

Delivery Time

7 Days

Application

Wooden Part

European Anti-Dumping

39.6%

Sample

Free

Transport Package

25kg/Carton+Pallet

Specification

M3.5-M4.3

Trademark

FAST

Origin

Ningbo, Zhejiang

HS Code

731815001

Production Capacity

2500tons/Month

Key features

Versatile Material Options: Available in Carbon Steel, SS201, SS304, SS316, and other stainless steel grades.

Wide Standard Compliance: Meets DIN, ASTM, ANSI, JIS, EN, ISO, AS, and GB standards.

Multiple Finishing Options: Offers Zinc, HDG, Black Oxide, Geomet, Dacroment, and Nickel plating.

OEM/ODM Services: Accepts OEM and ODM customization for fasteners and machined parts.

ISO9001 Certified: Manufacturing process certified under ISO9001 quality management system.

Strict Quality Control: QC inspects every production link; MTC and mill certificates provided.

Fast Delivery: Standard delivery time is 30 to 45 days, depending on quantity.

Free Sample for New Clients: Free standard fastener samples provided; client pays express charges.

Company profile

Ningbo Zhonglian Fastener Manufacture Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedNearest Port: Ningbo Port, Shanghai portAverage Response Time: ≤6.01h CertifiedTerms of Payment: LC, T/T, D/P CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryNingbo Zhonglian Fastener Manufacture Co., Ltd. is identified as a Chinese limited company operating in Zhejiang and producing construction fasteners, including bolts, nuts, screws, washers, and non-standard fasteners. The supplied information shows ISO9001:2015 certification and also references ISO14001, ISOEN14399CE, and ISOEN15048 approvals. Reported manufacturing resources include automatic cold-forging equipment, hot-forging lines, heat-treatment lines, and an inspection center. The company states that it serves international markets and maintains overseas service institutions, but the evidence does not fully establish current service performance. Production information is inconsistent across the slices regarding establishment date, employee count, plant area, and capacity, so scale should be verified. Customization capability is not explicitly demonstrated. Trade records identify buyers in the United Kingdom and Vietnam, but the number of documented transactions is limited.

Supplier typeThe supplier is classified as a combined business entity and limited company in China, with a stated manufacturing address in Zhejiang. Its products, manufacturing equipment, and description identify it as a fastener manufacturer rather than only a trading intermediary.

CertificationsThe supplier explicitly provides an ISO9001:2015 certificate. Its company description also references ISO9001, ISO14001, ISOEN14399CE, and ISOEN15048 approvals, indicating multiple quality, environmental, and product-related certifications or approvals.

After-Sales capabilityThe supplier states that it provides considerate service and has six domestic direct-sale offices plus overseas regional service institutions in Hungary, Dubai, Malaysia, and the UK. These statements support a service network, although no specific after-sales procedures, response standards, or performance evidence are provided.

Production capacityThe supplier reports nearly 100 automatic cold-forging machines, six hot-forging lines, four imported automatic mesh-belt heat-treatment lines, a professional inspection center, and monthly capacity of up to 2,500 tons. It also lists a broad range of fastener products and international standards, providing explicit evidence of substantial manufacturing capability.

Client casesTrade records associate the supplier with CYNTECH ANCHORS LTD in the UK and CÔNG TY TNHH CST INDUSTRIES VIỆT NAM in Vietnam, covering hex screws, hex nuts, and stainless-steel flat washers. These records demonstrate identifiable international buyer activity, but only a small number of transactions are shown.

Product Q&A

Q:What are your main products?

Our main products are fasteners: bolts, screws, rods, nuts, washers, anchors, and rivets. We also produce stamping parts and machined parts.

Q:How do you ensure product quality?

Every process is checked by our quality inspection department. We personally visit the factory to check quality, and QC inspects every production link for each batch. MTC and mill certificates are provided upon completion.

Q:What is the delivery time?

Our delivery time is generally 30 to 45 days, or according to the quantity.

Q:What is your payment method?

30% value of T/T in advance and 70% balance on B/L copy. For small orders less than 1000 USD, we suggest paying 100% in advance to reduce bank charges.

Q:Can you provide a sample?

For new customers, we provide free samples for standard fasteners, but clients pay express charges. For old customers, we send free samples and pay the express charges ourselves.