What are your payment methods?

We accept 30% T/T deposit with 70% before shipping, as well as L/C, D/P, PayPal, and Western Union.

How are the products packaged?

Standard packaging is 20-25 kg per carton, 36-48 cartons per pallet. Custom packaging and logos are available.

Do you accept custom designs for products or boxes?

Yes, we accept customized designs for both products and packaging with our professional design team.

How can I verify your company legitimacy?

We are verified suppliers on 'Made-in-China' and undergo a rigorous certification process to ensure legitimacy.

Can I visit your factory?

Yes, factory visits are welcome anytime. Please contact us beforehand to arrange airport or station transportation.

Heavy-Duty A325 A490 Hex Head Steel Bolts and Nuts Set

Name: Heavy-Duty A325 A490 Hex Head Steel Bolts and Nuts Set
Brand: Bolnut Fastener Co., Ltd
SKU: 2093292502

Jiangsu, ChinaBolnut Fastener Co., Ltd

US$0.10

1 Piece

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Alloy Steel

Type

Hexagon Head

Model NO.

A325 A325M A325F A490

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW

Grade

4.8/6.8/8.8/10.9/12.9/Gr.2 5 8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Plain/Black

MOQ

10000pieces

Thread

Metric

Name

Hex Bolt

Ceteficate

ISO9001

Transport Package

20-25kg/Carton+900kg Pallet

Specification

M4-M100 1/4-4"

Trademark

BNT

Origin

China

HS Code

731815

Production Capacity

1000ton/Month

Key features

Comprehensive Material Options: Available in Stainless Steel (SS201-SS904L) and Alloy Steel with grades 4.8 to 12.9.

Multiple Finishing Choices: Offers Zinc, HDG, Black Oxide, Geomet, Dacroment, Anodization, and Nickel plating.

Customized Production Capability: Cold and hot forging with CNC machining for customized fasteners based on drawings.

Free Sample Availability: Free samples provided for standard fasteners and existing customers with weight under 1kg.

Wide Standard Compliance: Meets DIN, ASTM/ANSI, JIS, EN, ISO, AS, GB, and BSW international standards.

Flexible Customization Options: Supports customization from samples, designs, full customization, and minor adjustments.

Competitive Factory Pricing: Direct manufacturer pricing ensures cost-effective solutions without compromising quality.

Professional Design Support: Expert design team available to create products based on specific customer specifications.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceFast Delivery

Bolnut Fastener Co., Ltd

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 YearsNearest Port: SHANGHAI , NINGBO ,ZHAPU , SHENZHEN, TIANJINGAverage Response Time: ≤0.79h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Zhangjiagang, Suzhou, with business scopes covering labor protection products, apparel, textiles, communication equipment, electronics, and certain medical protective products. It is described as a professional technical supplier and offers multiple customization modes, ODM services, and OEM services for popular brands. However, it has only one R&D engineer, launched no new products in the past year, and does not provide 3D software or SDK services. Service procedures and complaint-handling procedures exist, but supplier approval records are incomplete. Financial information is represented only by reporting years, without performance values. No overseas warehouse, showroom, overseas branch or offline trade-show participation is reported.

Supplier typeThe supplier is explicitly classified as a trade company, while its stated scope includes labor protection products, apparel, textiles, medical protective equipment, communication equipment, and electronic products. It is also identified as a professional technical supplier, indicating a trading-oriented business with technical and customization support rather than confirmed manufacturing status.

After-Sales capabilityThe supplier has a clear complaint-handling procedure with followed records, and it has a corrective and preventive action mechanism with implementation records. However, its general service-assessment procedure has no records, and its approved-supplier list lacks approval signatures or dates, indicating documented but incompletely controlled service processes.

R&D capabilityThe supplier is identified as a professional technical supplier and offers ODM services, but it has only one R&D engineer, launched no new products in the past year, and lacks both 3D software design and SDK capabilities. This shows some technical development and design support, but limited demonstrated innovation output and digital R&D capability.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, directly evidencing broad customization and design-manufacturing support.

Client casesA repeat-buyer preference of 50%–80% is reported, and the supplier states that it provides OEM services for popular brands. These are positive customer-related indicators, but no named customers, specific projects, order examples, or independently verifiable case details are provided.