Are free samples available?

Yes, we offer free samples for customers to evaluate the product quality before placing an order.

What certifications does the company hold?

Our company is certified under ISO9001:2015 for our management system and quality control processes.

What is the ball hardness of the plunger?

The ball material is SUS440c with a hardness of 55HRC or higher.

Fast Supplier SUS3o3 Housing Spring Loaded Plunger Slotted Flanged Ball Spring Plunger

Name: Fast Supplier SUS3o3 Housing Spring Loaded Plunger Slotted Flanged Ball Spring Plunger
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 2073692392

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$0.59

10-99 pieces

US$0.50

100+ pieces

Product profile

Customization

Available

Material

Stainless Steel

Type

Flanged Ball Spring Plunger

Model NO.

FBPJS

Selling Units

Single Item

Delivery Time

7~15 Working Days

Mail Body Material

SUS303

Keyword

Flanged Ball Spring Plunger

Size

M57*5.8

Sample

Instock

Ball Material

SUS440c

Ball Hardness

55HRC~

Single Package Size

13.8X7X8 Cm

Spring Material

SUS631j1

Single Gross Weight

2.000 Kg

Quality Control

100%

Certificate

ISO9001:2008

Trademark

Origin

Guangdong, China

Key features

Premium Material Construction: Made of SUS303 housing, SUS440c ball (55HRC hardness), and SUS631j1 spring for durability.

OEM and ODM Services: Full customization available from samples, designs, or minor modifications.

ISO 9001 Certification: Manufacturing process certified under ISO9001:2015 standards for quality assurance.

Fast Delivery Time: Standard delivery within 7 to 15 working days for both peak and off-peak seasons.

Low Minimum Order Quantity: Accepts orders starting from just 1 piece for flexible purchasing.

Comprehensive Payment Options: Supports T/T, L/C, D/P, PayPal, Western Union, and small-amount payments.

Free Sample Availability: Free samples are available for customers to test product quality before ordering.

Professional Manufacturing Experience: Specialized in hardware fasteners with over 11 years of export experience.

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: ≤5.07h

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.