Do you support the customization?

Yes, we can produce according to the drawing or samples.

12.9 Black Oxide Hex Bolt

Name: DIN933 Hex Head Bolt Grade 4.8/8.8/10.9/12.9 Black Oxide Hex Bolt
Brand: HANDAN TECH-MI METAL PRODUCT CO.,LTD
SKU: 2148416432

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

US$720.00

1 Ton

Product specifications

M6-M52

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

m6-m56

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Thread

Coarse Thread/Fine Thread

Surface Treatment

Black

Package

Bags or Cartons

Forming

Cold, Hot

Transport Package

Bag/Carton

Specification

25kg

Trademark

Origin

China

HS Code

7318151001

Production Capacity

200000tons/Year

Key features

High-Quality Fasteners: Superior quality fasteners meeting DIN/ISO/ASTM standards with 100% QC inspection.

Customization Support: Custom production from drawings or samples, including thread, surface, and packaging.

Wide Grade Range: Available in Grade 4.8, 8.8, 10.9, and 12.9 with diameters M6-M52.

30+ Years Experience: Over 30 years of professional experience in fastener manufacturing and industry.

Flexible Packaging: Options for bags or cartons, accommodating bulk packaging and branding needs.

Multiple Finishes: Available in Plain, Black Oxide, Zinc Plated, H.D.G, Dacromet, and other coatings.

Fast Delivery: Delivery time generally 20-30 days for 1-5 containers, depending on quantity.

Free Samples: Free samples provided, with express delivery costs borne by the buyer.

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: ≤8.01h

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:Are you a factory?

Yes, We are the factory with more than 30 years of production experience.

Q:How long is your delivery time?

For orders of one to five containers, the delivery time is generally around 20-30 days. It is according to order quantity.

Q:Do you provide samples? Is it free or extra?

Yes, We can provide samples for free, but the express delivery costs are borne by you.

Q:How about the quality of your products?

The company has advanced production and testing equipment. Every product will be 100% inspected by our QC department before shipment.

Q:What is your terms of payment?

T/T. 30% in advance and the balance should be paid at the sight of the copy of the bill of the loading. Depending on the detail order, we also accept LC.