What certifications do your products have?

Our products and manufacturing process are certified under ISO 9001:2015.

What are the available shipping methods?

We ship by sea, air, or express courier from ports in Shenzhen, Hong Kong, or Guangzhou.

High Quality Popular Carbon Steel Black Oxide Hex Pin Spring Plunger

Name: High Quality Popular Carbon Steel Black Oxide Hex Pin Spring Plunger
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 2074166802

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$1.79

1 Piece

Product profile

Customization

Available

Material

Steel

Head Style

Hex

Model NO.

PJLR/PJHR

Standard

DIN

Selling Units

Single Item

Measurement System

Metric

Product Name

Hex Pin Spring Plunger

Single Package Size

10X10X10 Cm

Spring Material

Alloy Steel

Load Type

Light/Heavy

Thread Size

M10 Tom30

Length

30-185mm

Single Gross Weight

0.005 Kg

Hardness of Body

29-35HRC

Finish

Black Oxide,Zinc Plated

Certificate

ISO 9001,Rhos

Trademark

Origin

Guangdong, China

Key features

Diverse Spring Plunger Types: Offers ball plunger, spring plunger, indexing plunger, and heavy duty variants.

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

ISO 9001 Certified: Manufacturing process certified under ISO 9001:2015 standards.

Fast Delivery: Delivery time ranges from 7 to 15 days for both peak and off-peak seasons.

Flexible Payment Terms: Accepts T/T, L/C, D/P, PayPal, Western Union, and small-amount payments.

OEM/ODM Services: Professional OEM and ODM services available with 6 R&D engineers.

High Quality Materials: Made of carbon steel with black oxide or zinc plated finish and 29-35HRC hardness.

Free Samples Available: One-for-order free samples provided upon request.

Company profile

In-stock CapacityFast DeliveryYears of Export ExperienceCustomization from Designs

Dongguan Zhengchen Hardware Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤4.74h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory in Dongguan operating in manufacturing. It demonstrates substantial customization, OEM and ODM capabilities, independent R&D activity, and six R&D engineers responsible for technical support and new product development. Manufacturing support includes valid contracts with related subcontractors, inventory capability, and stated peak- and off-season lead times within 15 working days. Quality and service processes are documented, including finished-product inspection, corrective and preventive actions, and complaint handling. The supplier has exported for 11 years, with exports representing 11%–20% of total sales, and is located near Shenzhen Port. Evidence is insufficient to confirm certifications, detailed after-sales performance, or financial credibility. The supplier lacks an available SDK, overseas warehouse, and overseas showroom.

Supplier typeThe supplier is explicitly identified as a factory located in Dongguan, and its associated companies operate in manufacturing. This supports classification as a manufacturing supplier rather than a trading-only company.

After-Sales capabilityThe supplier has six R&D engineers whose responsibilities include technical support for production and after-sales service. It also has documented complaint-handling and corrective/preventive-action procedures with records, but no specific after-sales service performance or coverage details are provided.

R&D capabilityThe supplier reports new products in the past year, provides ODM services, and has an independent R&D department. Six R&D engineers handle technical confirmation, production and after-sales support, and new product development; however, no SDK is available.

Production capacityProduction support is evidenced by six quality-control staff, four quality-control test equipment units, valid contracts with associated subcontractors, inventory capability, and stated lead times within 15 working days in both peak and off seasons. The supplier also reports 172 qualified service-capability suppliers, although detailed production capacity volumes are not provided.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization. It also provides customized processing of non-standard parts and OEM one-stop solutions, demonstrating broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and describes delivering complete solutions and non-standard-part processing for customer needs. No named customers, project examples, or independently verifiable case details are supplied.