Can you provide mill certificates?

Yes, mill certificates and MTC can be provided upon completion of goods to verify quality.

What is the standard packaging?

Standard packaging includes 20-25kg per carton, with options for customized logos or cartons based on customer requirements.

Do you accept small orders?

Yes, we welcome all orders with ample stock available for various fasteners and quick production capabilities.

Heavy Duty Structural Steel Hex Bolts

Name: Heavy Duty Structural Steel Hex Bolts
Brand: Ningbo Steel Bolt Co., Ltd
SKU: 2116352245

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 Support: Covers mechanical defects with 100% qualified products guaranteed under ISO9001 system.

OEM/ODM Services Available: Accepts customization from samples, designs, and offers flexible minor or full customization.

Fast Delivery for Stock Items: Stocked goods delivered within 15 days; larger quantities take 25-35 days.

Free Samples for New Customers: Standard fasteners provided free; express charges covered by client for new buyers.

Mill Certificates Provided: MTC available upon completion of goods to verify quality and material traceability.

Customized Packaging Options: Standard 20-25kg cartons with options for customized logos or specific carton designs.

Flexible Payment Terms: Accepts T/T, L/C, D/P for general orders and PayPal or Western Union for samples.

ISO9001 Quality Management: Strict QC from raw materials to finished products ensuring high reliability.

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.

Product Q&A

Q:What is the warranty period?

We provide lifetime warranty support for all our products, ensuring 100% qualified items under strict ISO9001 quality control.

Q:Do you accept OEM and ODM orders?

Yes, we accept OEM/ODM services including customization from samples, designs, and offer flexible minor or full customization options.

Q:What is the delivery time for stock items?

Stocked goods can be delivered within 15 days, while larger quantities may take 25-35 days for 1-2 containers.

Q:Are free samples available?

New customers may receive free samples for standard fasteners with express charges covered by the client, while existing customers receive free samples with express charges covered by us.

Q:What payment terms do you accept?

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