What grades of spring washers are available?

We provide spring washers in Grade 4.8, 8.8, 10.9, and 12.9.

What surface treatments are offered?

Surface treatments include Black, Zinc, and Customized options.

What standards do your products comply with?

Our products comply with DIN, ANSI, and GB standards.

Spring Washers Factory - Grade 8.8, Black Surface Treatment, GB Standards

Name: Spring Washers Factory - Grade 8.8, Black Surface Treatment, GB Standards
Brand: Handan Daduo Metal Products Co., Ltd.
SKU: 2215873265

Hebei, ChinaHandan Daduo Metal Products Co., Ltd.

US$0.01-0.05

3,000 Pieces

Product profile

Customization

Available

Type

Spring Washer

Material

Carbon Steel

Model NO.

M5-M30

Combination Washer Structure

A Type

Combination Washer Packaging

All Inclusive

Spring Washer Type

Standard

Grade

4.8/8.8/10.9/12.9

Surface Treatment

Black/Zinc/Customized

Standard

DIN, ANSI, GB

Testing

Salt Spray Test

Transport Package

Boxes

Specification

25*21*18mm

Trademark

da duo

Origin

Hebei China

Key features

Customizable Surface Treatment: Offers Black, Zinc, or Customized surface treatment options for spring washers.

Multiple Grade Options: Available in Grade 4.8, 8.8, 10.9, and 12.9 to meet various strength requirements.

OEM/ODM Services: Supports custom logo and design imprinting on products for brand customization.

High Production Capacity: Annual output exceeds 8,000 tons with 30 sets of equipment and 60+ employees.

Wide Specification Range: Specifications from 5mm-20mm and lengths from 16mm-400mm cover diverse needs.

Global Export Experience: Products exported to Asia, North America, South America, Europe, and other regions.

Fast Stock Shipping: In-stock items are guaranteed to ship within one week for urgent orders.

Comprehensive Testing: Products undergo salt spray testing to ensure quality and corrosion resistance.

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: ≤0.06hTerms 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.