What payment terms are accepted?

We accept LC, T/T, D/P, and PayPal for international transactions.

Can you provide OEM or ODM services?

Yes, we provide both OEM and ODM services, allowing customization from samples, designs, or minor adjustments to meet specific requirements.

What are the common applications for these bolts?

These bolts are widely used in structural steel, metal buildings, oil & gas, tower & pole construction, wind energy, and general machinery.

DIN7991 4.8 Full Thread Black Hexagon Socket Countersunk Head Bolts

Name: DIN7991 4.8 Full Thread Black Hexagon Socket Countersunk Head Bolts
Brand: HANDAN TECH-MI METAL PRODUCT CO.,LTD
SKU: 2075919652

Hebei, ChinaHANDAN TECH-MI METAL PRODUCT CO.,LTD

US$800.00

1 Ton

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Countersunk Head

Model NO.

M6-M56

Connection

Common Bolt

Head Style

Counter Sunk Bolt

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Size

M6-56

Length

15-300mm

Thread

Full or Half Thread

Lead Time

Around 25 Days

Transport Package

25kgs Then Pallet

Specification

25kg

Trademark

Origin

China

HS Code

7318159001

Production Capacity

800000ton/Year

Key features

Customizable Specifications: Size M6-56, Length 15-300mm, Full or Half Thread available per customer needs.

Wide Material & Finish Options: Carbon Steel, Stainless Steel, Alloy Steel with Black, Zinc Plated, or Nickel Plated finishes.

Strict Quality Control: ISO 9001:2015 certified with random visual and function inspections for every batch.

Flexible Packaging Solutions: Cartons, bags, pallets, or custom branding and labeling according to customer requirements.

Fast Delivery Time: Standard lead time around 25 days; peak and off-season delivery within 15 workdays.

Versatile Application Range: Suitable for structural steel, oil & gas, wind energy, and mechanical industries.

Multiple Certification Standards: Complies with DIN, ANSI, GB, JIS, BSW, and GOST standards for global compatibility.

Reliable Manufacturer Support: Professional OEM/ODM service with dedicated customer support and quick response times.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-branded

HANDAN TECH-MI METAL PRODUCT CO.,LTD

Hebei, 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: 2 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤4.74h

AI-Powered supplier vetting

SummaryHandan Yanzhao Fastener Manufactory Co., Ltd. is a combined fastener manufacturer in Handan, China, operating a 40,000-square-meter facility with more than 100 employees and over 100 production machines. It reports high-strength fastener R&D and production, multiple manufacturing processes, five quality inspectors, standardized finished-product inspection instructions, and inventory capability. The supplier offers broad customization and ODM/OEM services, including OEM for recognized brands and SDK availability, but reports no new products in the past year. Service limitations include no valid manufacturing-capacity contract with associated subcontractors, no overseas warehouse, showroom, agent, or branch, no overseas-service countries, and no participation in offline trade shows. Lead times are stated as within 15 working days in both peak and off-season. Financial records are identified for 2021–2023, but no financial results are provided. No certification evidence, customer case details, or formal...

Supplier typeThe supplier is identified as Handan Yanzhao Fastener Manufactory Co., Ltd., a combined company specializing in R&D and production of high-strength fasteners. Its stated facility size, workforce, equipment base, and manufacturing scope support classification as a manufacturer rather than only a trading intermediary.

After-Sales capabilityThe supplier reports inventory capability, accepts several service quotation and payment terms, and states a service location near Tianjin Port. However, it has no overseas warehouse, showroom, agent, branch, or overseas-service country coverage, and has no written service-capability assessment procedures or approved supplier list, indicating limited documented overseas after-sales infrastructure.

Production capacityThe supplier reports a 40,000-square-meter site, more than 100 employees, over 100 advanced production machines, shot blasting, wire drawing, molding, heat treatment, and stud production facilities, inventory capability, five quality inspectors, and lead times within 15 working days in both seasons. These stated resources and performance indicators support substantial production capacity, although the lack of a valid contract with associated subcontractors is a control weakness.

Customization capabilityBoth R&D and design-capability records explicitly list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also reports ODM availability, providing direct evidence of broad customization support.

Product Q&A

Q:What are the available customization options?

We offer customization for size (M6-56), length (15-300mm), thread type (Full or Half), material, coating, and packaging based on your drawings or samples.

Q:What materials and finishes are available?

Materials include Carbon Steel, Stainless Steel, and Alloy Steel. Finishes available are Black, Grey Phosphated, White/Yellow Zinc Plated, and Nickel Plated.

Q:What is the typical lead time for orders?

The standard lead time is around 25 days. During peak and off-seasons, delivery can be completed within 15 workdays after receiving advance payment.

Q:What certifications does the company hold?

We are ISO 9001:2015, OHSAS 18001:2007, and ISO 14001:2015 certified, ensuring high-quality management and environmental standards.

Q:What is the Minimum Order Quantity (MOQ)?

The MOQ is flexible and determined according to customer demand, with a minimum of 1 unit for international trade terms.