How do you control quality?

Our QC team inspects every production link for each batch of goods and provides MTC and mill certificates upon completion.

Do you provide free samples?

New customers can receive free samples for standard fasteners, with express charges covered by the client. Existing customers receive free samples with express charges covered by us.

Do you accept small orders?

Yes, we accept any orders and maintain stock for various fasteners. Customized orders are also welcome.

What is your delivery time?

If in stock, we can deliver within 15 days. Larger quantities may take 25-35 days.

How do you pack your products?

Our standard packing is 20-25kg per carton, with customized logos available. We can also customize cartons based on customer requests.

What are your payment terms?

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

Heavy Duty ASTM A563 Gr Dh Hex Nuts

Name: Heavy Duty ASTM A563 Gr Dh Hex Nuts
Brand: Ningbo Steel Bolt Co., Ltd
SKU: 2113515435

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

OEM/ODM Services: Accepts OEM/ODM orders with flexible customization options from samples and designs.

ISO9001 Quality Control: Strict processes from raw materials to finished products ensuring 100% qualified goods.

Free Samples for New Customers: Free standard fastener samples provided; client covers express charges.

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

Lifetime Warranty Support: Comprehensive warranty support covering mechanical defects for the product's life.

MTC and Mill Certificates: Quality Control team inspects every batch and provides MTC upon completion.

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

Customizable Packaging: Standard 20-25kg cartons available with options for customized logos and designs.

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: ≤15h

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:Are you a manufacturer or trading company?

Ningbo Steel Bolt Co., Ltd is a manufacturer of fasteners with years of experience in producing Bolts, Nuts, Threaded Rods, and Washers in Ningbo, China.

Q:Do you provide OEM/ODM services?

Yes, Ningbo Steel Bolt Co., Ltd accepts OEM/ODM orders.

Q:How do you guarantee quality?

We have strict quality control processes from raw materials to finished products following the ISO9001 quality management system, ensuring 100% qualified products with lifetime warranty support.

Q:How can I trust you?

As a reputable fasteners factory in China, we have years of production experience and are a Gold member of *** and Made in China with credit guarantees. You can place orders directly through ***.

Q:What about your pricing?

We offer high-quality products at reasonable prices. Contact us for a quote.