What is the delivery time?

Stock items delivered within 15 days, while 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/Western Union for small or sample orders.

High Strength Heavy Duty Hex Bolts

Name: High Strength Heavy Duty Hex Bolts
Brand: Ningbo Steel Bolt Co., Ltd
SKU: 2113649635

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

Connection

Common Bolt

Head Style

Hexagonal

Standard

ASTM

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Packing

Cartons+Plastic Bags

Head Type

Hexagon Flange Head

Surface Treatment

Black Oxide

Transport Package

Carton+Pallet

Trademark

ningbo-bolt

Origin

Zhejiang, China

Production Capacity

100000 Piece/Pieces Per Month

Key features

High Strength Material: Made of carbon steel with ASTM A325 standard for heavy-duty applications.

Versatile Applications: Suitable for machinery, chemical industry, environmental, and building sectors.

Customization Options: Offers full customization, minor customization, and flexible options from samples or designs.

ISO9001 Quality System: Strict quality control following ISO9001 with 100% qualified products guarantee.

Lifetime Warranty: Provides lifetime warranty support for all mechanical defects.

Fast Delivery: Stock items delivered within 15 days; larger quantities in 25-35 days.

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

OEM/ODM Services: Accepts OEM and ODM services with customization from designs or samples.

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 extensive 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 ensure strict quality control from raw materials to finished products following the ISO9001 quality management system, guaranteeing 100% qualified products with lifetime warranty support.

Q:Can I get free samples?

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

Q:Do you accept small orders?

We accept all orders and maintain stock for various fasteners, with quick production capabilities.