Where is your factory located?

Our factory is located at No. 426, Xueshi Road, Yinzhou, Ningbo, Zhejiang, China.

What are your main export markets?

We export to North America, South America, Eastern Europe, Southeast Asia, Eastern Asia, and Western Europe.

What certifications do you hold?

We are ISO 9001:2008 certified for our manufacturing processes.

High Strength Black Oxide Plow Bolt Knurled Head with Hex Nut

Name: High Strength Black Oxide Plow Bolt Knurled Head with Hex Nut
Brand: NINGBO YINZHOU GONUO HARDWARE CO., LTD.
SKU: 2277735035

Zhejiang, ChinaNINGBO YINZHOU GONUO HARDWARE CO., LTD.

US$1.00

1,000-4,999 Pieces

US$0.80

5,000+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

High Strength Steel

Type

Round Head

Model NO.

Plow Bolt

Connection

Common Bolt

Head Style

Round

Standard

Customized

Grade

Gr8.8 10.9 12.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Thread Type

External Thread

Anticorrosive Performance

Salt Spray Test Reach 1000-2000 Hours.

Precision Grade

Industrial Grade

Certificate

ISO9001:2008

Transport Package

Carton, Pallet

Specification

M5x10mm-M100x3000mm, 1/4X1"-4"X100"

Trademark

GONUO

Origin

China

HS Code

7318159090

Production Capacity

100ton/Month

Key features

Customized Standards: Offers standard and customized bolt specifications to meet unique project requirements.

Superior Corrosion Resistance: Stainless steel fasteners provide excellent resistance in marine, chemical, and food-grade environments.

High Strength Grades: Available in Property Class 10.9/12.9 and ASTM A325/A490 for extreme load-bearing needs.

Salt Spray Test Performance: Anticorrosive performance reaches 1000-2000 hours in salt spray testing.

ISO 9001 Certified Quality: ISO 9001:2008 certified processes ensure consistent high standards for every batch.

Direct Factory Engineering Support: Eliminate middleman costs with direct access to engineering teams for design optimization.

Wide Size Range: Sizes available from M5x10mm to M100x3000mm and 1/4X1' to 4'X100'.

Company profile

Importers and ExportersYears of Export ExperienceExperienced TeamExhibition Experience

NINGBO YINZHOU GONUO HARDWARE CO., LTD.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2011-10-08Nearest Port: Ningbo ShanghaiAverage Response Time: ≤0.82hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB, CFR, CIF, DDP

AI-Powered supplier vetting

SummaryNingbo Yinzhou Gonuo Hardware Co., Ltd. is identified as a specialized manufacturer of nuts, serving industrial equipment, tools and hardware, automotive parts, and machinery sectors. It demonstrates broad customization capability, including sample-, drawing-, minor-, flexible-, and full-customization services, supported by engineering assistance and new product activity in the past year. The supplier reports ISO9001:2015 certification, documented service procedures, corrective/preventive-action processes, and complaint-handling procedures. Production information indicates nut output of 1,000 tons, while quality inspection staffing appears limited and finished products are checked by packing staff. The supplier exports to multiple regions and is located near Ningbo and Shanghai ports. It lacks SDK, ODM, in-stock, overseas warehouse, and overseas showroom capabilities; fire drills were not conducted regularly during the past year. Financial information is limited to year references, so credibility cannot...

Supplier typeThe supplier is explicitly described as a specialized manufacturer dedicated to researching, producing, and selling nuts. Its stated trade coverage includes industrial equipment, tools and hardware, automotive parts, and manufacturing machinery, confirming a manufacturing-oriented industrial supplier profile.

CertificationsThe supplier reports an ISO9001:2015 certificate, providing explicit evidence of a quality management system certification. No additional certifications are identified in the provided information.

After-Sales capabilityThe supplier reports written procedures and followed records for service capability assessment, corrective and preventive actions, and customer complaint handling. This supports the existence of structured after-sales and issue-resolution processes, although actual service performance outcomes are not provided.

R&D capabilityThe supplier reports new products during the past year, has 41–50 years of total R&D engineer experience, and provides engineering support from drawing review through process design and sample validation. However, it reports no available SDK and no ODM service, so the evidence supports product-development capability but not a full collaborative development platform.

Production capacityThe supplier reports nut production of 1,000 tons and serves multiple export markets, with peak-season lead time of one month and off-season lead time within 15 workdays. However, it reports no in-stock capacity, no overseas warehouse, and finished-product checking by packing staff; outsourcing procedures and contracts are also of unknown status.

Customization capabilityCustomization is explicitly offered from samples, designs, minor requirements, flexible requirements, and full specifications. The engineering team supports drawing review, process design, and sample validation for non-standard nuts involving thread type, dimensions, mechanical properties, and surface treatment.