What quality certifications do you have?

We follow the ISO9001 quality management system and provide MTC and mill certificates upon completion.

Can I customize the packaging?

Yes, standard packaging includes 20-25kg cartons on pallets, with customization options available for customer logos.

What is your minimum order quantity?

We welcome all orders with ample stock available for various fasteners and quick production capabilities.

Metric System Heavy Hex Nut

Name: Metric System Heavy Hex Nut
Brand: Ningbo Steel Bolt Co., Ltd
SKU: 2116309185

Zhejiang, ChinaNingbo Steel Bolt Co., Ltd

US$0.10-1.00

1,000 Pieces

Product profile

Customization

Available

Material

Steel

Standard

ANSI

Model NO.

A563

Grade

6 8 10

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

Lifetime Warranty Support: Covers all mechanical defects with free parts and labor for the machine's entire life.

ISO9001 Certified Quality: Strict quality control from raw materials to finished products ensuring 100% qualified items.

OEM/ODM Services Available: Accepts customization from samples, designs, and full customization options.

Fast Delivery for Stock Items: In-stock items delivered within 15 days; larger quantities take 25-35 days.

Free Samples for New Customers: New customers receive free samples for standard fasteners (client pays express).

Flexible Payment Terms: Accepts T/T, L/C, D/P, Paypal, and Western Union for various order sizes.

Comprehensive Material Certs: MTC and mill certificates provided upon completion of every production link.

Customizable Packaging: Standard 20-25kg cartons on pallets with options for customer logos.

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: ≤24h

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.

Product Q&A

Q:What is the warranty period?

We provide lifetime warranty support for all our products.

Q:Do you offer OEM or ODM services?

Yes, we accept OEM/ODM services including customization from samples, designs, and full customization.

Q:What are the delivery times?

In-stock items can be delivered within 15 days, while larger quantities take 25-35 days for 1-2 containers.

Q:Are free samples available?

New customers can receive free samples for standard fasteners (client pays express charges), while old customers receive free samples with company-paid express charges.

Q:What payment methods do you accept?

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