Do you accept small orders?

We accept orders of any size and keep stock of various fasteners. Custom production is also available.

What is the delivery time?

Goods in stock can be delivered within 15 days. Larger quantities may take 25-35 days.

What are the payment terms?

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

Black Oxide Heavy Hex Bolts Pack

Name: Black Oxide Heavy Hex Bolts Pack
Brand: Ningbo Steel Bolt Co., Ltd
SKU: 2112964195

Zhejiang, ChinaNingbo Steel Bolt Co., Ltd

US$0.10-1.00

10,000 Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

ASTM A325

Head Style

Hexagonal

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Packing

Cartons+Plastic Bags

Head Type

Hexagon Flange Head

Surface Treatment

Black Oxide

Origin

Zhejiang, China

Production Capacity

100000 Piece/Pieces Per Month

Key features

Lifetime Warranty Coverage: 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% qualification.

OEM/ODM Services Available: Accepts custom orders based on samples, designs, or full customization requirements.

Fast Delivery for Stock Items: Goods in stock can be delivered within 15 days.

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

Flexible Order Acceptance: Accepts orders of any size with maintained stock of various fasteners.

Comprehensive Payment Options: Accepts T/T, L/C, D/P, PayPal, and Western Union for various order types.

Custom Packaging Solutions: Standard 20-25kg cartons with options for customized logos and specific requests.

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 accept OEM/ODM services?

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

Q:What is the quality guarantee?

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

Q:How is quality control performed?

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

Q:Are free samples available?

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