What surface treatments are available?

We offer Black, Zinc, or customized surface treatments to meet specific requirements.

What sizes and grades are available for these hex nuts?

Sizes range from M5 to M30, and we provide Grade 4.8, 8.8, 10.9, and 12.9 options.

Heavy Duty Black Zinc Hex Nuts for M5-M30 Size

Name: Heavy Duty Black Zinc Hex Nuts for M5-M30 Size
Brand: Handan Daduo Metal Products Co., Ltd.
SKU: 2216939765

Hebei, ChinaHandan Daduo Metal Products Co., Ltd.

US$0.02-0.10

10,000 Pieces

Product profile

Customization

Available

Material

Stainless Steel

Type

Hexagon Head

Model NO.

M5-M30

Connection

Common Bolt

Head Style

Hex

Standard

DIN, ANSI, GB

Grade

4.8/8.8/10.9/12.9

Surface Treatment

Black/Zinc/Customized

Testing

Salt Spray Test

Package Gross Weight

25.3kgs

Size

M5-M30

Transport Package

Boxes

Specification

25*21*18mm

Trademark

Da Duo

Origin

China He Bei

Production Capacity

8000 Tons/Year

Key features

Customized Surface Treatment: Offers Black, Zinc, or fully customized surface treatments for hex nuts.

OEM/ODM Services: Supports custom logo and design imprinting on products for branding needs.

High Production Capacity: Annual output exceeds 8,000 tons with 30 sets of cold heading machines.

Wide Size Range: Available in sizes from M5 to M30, covering various industrial standards.

Multiple Strength Grades: Provides Grade 4.8, 8.8, 10.9, and 12.9 options for diverse load requirements.

Salt Spray Tested: Products undergo rigorous salt spray testing to ensure corrosion resistance.

Fast Shipping for Stock Items: In-stock items are guaranteed to ship within one week of order confirmation.

Global Export Experience: Products exported to Asia, North America, Europe, and other global markets.

Company profile

High Repeat Buyers ChoiceQuality AssuranceQA/QC InspectorsIn-stock Capacity

Handan Daduo Metal Products Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Designs, Full Customization, etc.Export Year: 2011-03-17Nearest Port: TianjinAverage Response Time: ≤0.08hTerms of Payment: LC, T/T, D/P

About Our Factory & Business Background

AddressLinmingguan Town Xiduanzhuang Industrial Zone, Handan, Hebei, China

Plant Area2193.1 square meters

Number of Employees26

Registered Capital2,000,000 RMB

International Commercial Terms(Incoterms)FOB

Average Lead TimePeak Season Lead Time: 1-3 months Off Season Lead Time: one month

Our Production Capability & Technical Expertise

Main ProductsBolt, Carriage Bolt, Nut, Washer, Screw, Stud

Production Lines25

Production MachinesWire drawing machine, Cold heading and thread rolling machine

QA/QC inspectors2 people

Inspection Type for Finished ProductsRandom inspection(Visual inspection)

Inspection Method for Finished ProductsFinished product checked by packing staff

R&D Engineers1 people

Traceability of Raw MaterialsNo

Our Industry Experience & Global Business Record

Year of Establishment2022-08-05

Main MarketsNorth America, Southeast Asia, Africa, Eastern Asia

Repeat Buyers Choice80%~100%

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:Can I obtain samples?

Yes, samples are available upon request.

Q:Can I use my own logo or design on the product?

Yes, we offer OEM/ODM services; your logo and design can be imprinted on the product.

Q:Do you have a factory?

Yes, we have a factory in Hebei. You are welcome to visit our company and factory. We are a professional manufacturer, providing OEM/ODM services to our customers.

Q:What is the production capacity of your factory?

Our factory boasts 30 cold heading machines of various sizes, employs nearly 60 skilled workers, and has an annual production capacity of 8,000 tons.

Q:When will the goods be shipped?

Some of our products are in stock and guaranteed to be shipped within one week. For customized orders, they will be shipped within one month after production is arranged. The specific situation may vary depending on local government policies. We can maintain communication at any time to keep abreast of the production and shipping progress.