What is the production capacity?

We have a yearly capacity of 30,000 tons, ensuring timely delivery for large orders.

What materials are used for these bolts?

We manufacture using carbon steel, alloy steel, and stainless steel.

What is the size range available?

Sizes range from M4 to M100 to suit different application needs.

High Strength DIN603 Round Head Square Neck Carriage Bolts

Name: High Strength DIN603 Round Head Square Neck Carriage Bolts
Brand: NINGBO YI PIAN HONG FASTENER CO., LTD.
SKU: 879780605

Zhejiang, ChinaNINGBO YI PIAN HONG FASTENER CO., LTD.

US$0.023

1,000-2,999 Pieces

US$0.02

3,000+ Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

DIN603

Connection

Common Bolt

Head Style

Round

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Blue-White Zinc Plated

Transport Package

25kgs Per Box,36 Boxes Per Pallet,900kgs Per Palle

Specification

M4--M100

Trademark

YPH

Origin

Ningbo. Zhejiang. China

HS Code

7318159090

Production Capacity

1500ton/Month

Key features

Wide Grade Range: Available in Grade 4.8, 6.8, 8.8, 10.9, and 12.9 for high strength applications.

Multiple Standards: Complies with DIN, ANSI, GB, JIS, BSW, and GOST standards.

Customizable Finish: Surface treatments include black, zinc plated, yellow zinc, H.D.G, and Dacroment.

OEM Service: OEM accepted; customer designs and logos are welcome.

Free Samples: Free samples are provided for quality verification.

Large Capacity: Yearly manufacturing capacity of 30,000 tons ensures stable supply.

Versatile Materials: Made from carbon steel, alloy steel, and stainless steel.

Wide Size Range: Sizes available from M4 to M100 for diverse machinery needs.

Company profile

NINGBO YI PIAN HONG FASTENER CO., LTD.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2016-04-19 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤7.31h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR, DDP; DAP, EXW

AI-Powered supplier vetting

SummaryNINGBO YI PIAN HONG FASTENER CO., LTD. is a China-based trading company and manufacturer/factory in Ningbo, Zhejiang, established in 2001. Its stated products include fasteners, bolts, nuts, washers, thread bars, and related steel products. The supplier reports 10 production lines, 21–30 quality-control staff, over 260 production equipment units, 30 examination devices, and testing for hardness, cracks, and raw-material chemical composition. It reports multiple management-system certifications, including ISO 9001, ISO 14001, ISO/TS 16949, and BSCI. Export activity is identified from 2016, with Western Europe listed as a primary export market, while trade records also show transactions involving Brazil and Kazakhstan. Evidence is insufficient to assess after-sales service, financial credibility, customization, and customer-case quality in depth.

Supplier typeThe supplier is identified as both a trading company and manufacturer/factory, while its basic company classification also states “trade company.” Its listed business scope covers industrial equipment and components and transportation, and its product keywords focus on fasteners and related hardware.

CertificationsThe supplier lists numerous management-system certifications, including BSCI, ISO 9000, ISO/TS 16949, OHSAS/OHSMS 18001, ISO 14001, ISO 9001, ISO 14000, ISO 20000, GMP, HSE, QC 080000, and ISO 14064. The slices do not provide certificate numbers, validity dates, issuing bodies, or scope, so the assessment is based on the stated holdings only.

R&D capabilityThe supplier reports 6–10 years of R&D engineer experience and uses specialized testing equipment, including a vortex durometer, flaw detector, and direct-read spectrograph. These facts support technical and quality-engineering capability, but do not explicitly demonstrate new product development, patents, or other innovation outcomes.

Production capacityThe supplier reports 10 production lines, 21–30 quality-control staff, over 260 production equipment units, and 30 examination devices. Its stated 100% hardness testing and additional crack and chemical-composition checks provide direct evidence of organized manufacturing and inspection capability for fastener products.

Client casesTrade records associate the supplier with BOLLHOFF SERVICE CENTER LTDA in Brazil and ТОО LTNPROJECT ЛТНПРОДЖЕКТ in Kazakhstan, with recorded transactions in the supplied data. These entries demonstrate identifiable buyer-related trade activity, but the limited records do not establish customer satisfaction, project scale, repeat business, or performance outcomes.