Black Oxide Carbon Steel Threaded Body with Zinc Plated Pin Spring Plunger

Name: Black Oxide Carbon Steel Threaded Body with Zinc Plated Pin Spring Plunger
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 2069142655

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$1.00

50-499 Pieces

US$0.80

500-999 Pieces

US$0.60

1,000+ Pieces

Sample price:US$0.80/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

PJS/PJL/PJH/PJX

Connection

Common Bolt

Head Style

Round

Standard

ISO

Application

Chemical Industry

Finish

Black

Name

Spring Plunger

Body Material

Carton Steel

Pin Material

Carton Steel

Size

M3-30

Surface Treatment

Black Oxide

Transport Package

Carton

Specification

30*30*30cm

Trademark

Origin

China

HS Code

73181600

Production Capacity

30000000PC/Year

Key features

Fast Lead Time: 3-7 days for standard products, 3-15 days for customized orders.

Low MOQ: Minimum order quantity is 1 piece for in-stock items.

Customization Support: Full customization available via samples, pictures, or drawings.

ISO Certified: Manufacturing process certified under ISO9001:2015 standards.

Multiple Shipping Options: Supports sea, air, express, and international airmail shipping.

100% Quality Inspection: All products undergo 100% inspection before shipment.

OEM/ODM Services: Full OEM and ODM services available for custom designs.

Global Shipping: Ships from Shenzhen or HongKong to worldwide destinations.

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.

Product Q&A

Q:What is your main product series?

Zhengchen Hardware mainly manufacturer and sell spring plungers, steel ball rollers, knob plungers, buffer bolts, tooth surface screws, adjusting screws, screw bolts, fixing rings, positioning pins, nut washers, locking bolts, etc.

Q:Can I buy only one piece?

For products in stock, our minimum MOQ is 1 piece. For customized products, sample fee is required to purchase only 1 product, please consult the sales staff for the sample cost.

Q:When will the goods i purchased be shipped?

For products in stock, we generally ship within 1-3 days. For customized products, the production time is 3-15 days, and the salesman will tell you the estimated delivery date when confirming the order with you.

Q:What is your shipping method? How soon can I receive my product?

For orders are less than US$50, we usually ship them by international airmail (the whole process can be tracked). The delivery time of airmail shipping to different countries is slightly different. Generally, it takes about 10 days to reach Asian countries, 15-20 days to Europe, North America and Australia, and 25-30 days to other countries. For products with an order higher than USD 50, we usually ship by UPS/FEDEX/DHL, and the delivery time is 5-15 days. You can also choose the higher grade me

Q:I want to customize products, can you help me?

You can send samples, pictures, drawings, etc. to our sales staff. After confirming the information, the sales staff will communicate with the engineer and production manager to make the best production plan for you.