What payment terms do you accept?

We accept T/T, L/C, D/P for general orders, and PayPal/Western Union for small or sample orders.

Do you provide quality certificates?

Yes, our QC team provides MTC and mill certificates upon completion of every production link.

What is your standard packaging?

Standard packaging is 20-25kg per carton, with customization options available.

Heavy Duty Carbon Steel Hex Nuts

Name: Heavy Duty Carbon Steel Hex Nuts
Brand: Ningbo Steel Bolt Co., Ltd
SKU: 2115611765

Zhejiang, ChinaNingbo Steel Bolt Co., Ltd

US$0.10-1.00

1,000 Pieces

Product profile

Customization

Available

Material

Steel

Standard

ASTM

Model NO.

A194

Grade

4 6 8

System of Measurement

Metric

Product Name

Hex Nut

Measurement System

Metric

Finish

Zinc/Black Plated/HDG

Application

General Industry

Origin

Zhejiang, China

Production Capacity

100000 Piece/Pieces Per Month

Key features

Diverse Finish Options: Available in Zinc, Black Plated, and HDG finishes.

Strict Quality Control: ISO9001 compliant with 100% qualified products and lifetime warranty.

Flexible Customization: Supports OEM/ODM, full customization, and minor customization from designs.

Fast Delivery for Stock: Stock items delivered within 15 days; larger orders take 25-35 days.

Free Samples for New Clients: New customers receive free standard samples (client covers express).

Comprehensive Certifications: Provides MTC and mill certificates for every production link.

Flexible Payment Terms: Accepts T/T, L/C, D/P, PayPal, and Western Union.

Manufacturer Direct: Direct from Ningbo Steel Bolt Co., Ltd with years of experience.

Company profile

High Repeat Buyers Choice

Ningbo Steel Bolt Co., Ltd

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 6 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier and operates as a combined company involved in producing and selling fasteners, hardware products, auto parts, and oil pipeline fittings. It supports extensive product customization, including samples, designs, full customization, minor customization, and flexible customization. The supplier reports two production lines and one presence in a main export market, with an average lead time of one month in both peak and off-season periods. However, it lacks 3D software design services, SDK availability, in-stock capacity, overseas warehouses, overseas agents or branches, and offline trade-show participation. Finished products are checked by packing staff, while no written procedures or records are used for assessing service capability. The provided information does not establish certifications, financial strength, after-sales performance, or customer case history.

Supplier typeThe supplier is explicitly identified as a professional technical supplier. It is a combined company whose stated business scope includes production and sales of fasteners, hardware products, auto parts, and oil pipeline fittings, as well as related import and export activities.

R&D capabilityThe supplier is identified as having professional technical research and development capability, and it offers multiple forms of customization. However, it explicitly does not provide 3D software design services and has no available SDK, so the evidence supports technical customization but not broader digital or software innovation capability.

Production capacityThe supplier reports two production lines, one-month average lead times in both peak and off-season, and six years of exporting experience. Countervailing controls are limited: finished products are checked by packing staff, there is no continuous quantity reconciliation for each batch or production run, no outsourcing SOP, no valid manufacturing-capacity contract with related subcontractors, and no in-stock capacity.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of broad product-design and modification capability, although 3D software design services are not available.