Is any maintenance required?

Minimal maintenance is needed. We recommend occasional cleaning to remove dirt and debris, and a light application of lubricant to the moving pin and spring to keep the mechanism operating smoothly. This simple step will ensure consistent performance for years to come.

02439 Zinc Plated Adjustable Spring Loaded Trailer Lock Pin

Name: 02439 Zinc Plated Adjustable Spring Loaded Trailer Lock Pin
Brand: Huangyan Xinqian Yingjia Metal Product Factory
SKU: 2290694845

Zhejiang, ChinaHuangyan Xinqian Yingjia Metal Product Factory

US$3.88

100-499 Pieces

US$1.88

500+ Pieces

Sample price:US$60.00/piece.Request sample

Product profile

Customization

Available

Color

Silver

Compatibility

International

Model NO.

02439

Finish

Galvanized

Installation Method

Bolt-on

Material

Steel

Placement

Rear

Structure

Load-bearing Body

Style

Custom Style

Type

Galvanized

Keyword

Truck Body Hinge

Packaging Details

PCS/CTN,Pallet for Carton

Supply Ability

10000 Piece/Pieces Per Month

Surface Treatment

Zinc

Weight

0.090kg

Sea Port

Ningbo

Transport Package

PCS/CTN, Pallet for Carton

Specification

Steel

Trademark

Yingjia

Origin

China

HS Code

8302100000

Production Capacity

10000 Piece/Pieces Per Month

Key features

Industrial-Grade Durability: Forged from high-tensile, heat-treated steel to withstand heavy impact and extreme loads.

All-Weather Corrosion Protection: Premium electro-galvanized zinc coating resists rust, salt, and moisture for long-term use.

One-Hand Operation: Precision spring-loaded mechanism allows tool-free locking with a simple press-and-release.

Vibration-Proof Design: Internal spring maintains tension to prevent slipping or disengagement during transit.

Universal Adjustable Fit: Dual-slotted mounting plate offers horizontal adjustability for various door frames.

Low-Maintenance Reliability: Simple design with no complex parts ensures consistent performance with minimal upkeep.

Dual Installation Options: Supports both bolt-on and weld-on mounting for flexible installation on new or existing vehicles.

Certified Quality Standards: Manufactured under ISO 9001 and IATF 16949 certified systems for global compliance.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceSelf-brandedImporters and Exporters

Huangyan Xinqian Yingjia Metal Product Factory

Zhejiang, 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: 12 years CertifiedNearest Port: Ningbo portAverage Response Time: ≤3.14h

AI-Powered supplier vetting

SummaryThe supplier is a China-based manufacturer of metal chains, metal products, molds, automotive parts, and related products, with nearly 20 years of stated experience and 12 years of export activity. It reports TS 16949 certification, one production line, five R&D engineers, recent new-product launches, OEM service for well-known brands, and ODM capability. Customization is broad, covering designs, samples, full customization, flexible customization, and minor customization. Quality and service procedures are documented and followed, including finished-product inspection, corrective and preventive actions, complaint handling, and supplier assessment. The supplier has manufacturing-capacity contracts with associated subcontractors and in-stock capability, but no overseas warehouses, showrooms, agents, or branches. Evidence of customer cases is limited: it reports no Fortune 500 cooperation but does report OEM work for well-known brands and a repeat-buyer preference range.

Supplier typeThe supplier is identified as Huangyan Xinqian Yingjia Metal Product Factory, a manufacturer based in Huangyan District, Taizhou, Zhejiang, China. Its stated business scope covers metal chains and other metal products, metal materials, molds, automotive parts and accessories, and related sales activities, indicating a manufacturing-oriented supplier rather than a pure trading company.

CertificationsThe supplier reports holding TS 16949 certification and also lists another management-system certification category as "Others." This provides explicit evidence of at least one relevant certified management system, although the details and scope of the additional certification are not provided.

After-Sales capabilityThe supplier reports documented and followed procedures for corrective and preventive actions and customer complaint handling, along with quality assurance in its quality-control processes. However, it has no overseas warehouse, showroom, agent, or branch, so local overseas support infrastructure is not evidenced.

R&D capabilityThe supplier reports five R&D engineers, new products launched during the last year, product-information output from R&D, and ODM service availability. These are explicit indicators of active product development, although no SDK is available and no quantitative product-development performance beyond the stated information is provided.

Production capacityThe supplier operates one production line, has manufacturing-capacity contracts with each associated subcontractor, and reports in-stock capability. It also states an average peak-season lead time of one month and an off-season lead time within 15 workdays, supported by written supplier-service assessment procedures and 20 qualified suppliers. These data support operational capability, while the single-line count limits evidence of production scale.

Customization capabilityThe supplier explicitly provides customization from designs, customization from samples, full customization, flexible customization, and minor customization. The same range is linked to its R&D capability, and ODM service is available, demonstrating broad product-development and customization support.

Product Q&A

Q:Is this latch pin difficult to install?

Not at all. It supports both bolt-on and weld-on installation methods. The slotted mounting plate allows for easy adjustment to align with your door frame, and basic tools are all you need for a quick, secure setup. Clearance holes for bolts are designed to fit standard hardware, making the process even simpler.

Q:Will this latch rust or corrode quickly?

No. The high-quality zinc-plated finish provides excellent protection against rust, corrosion, road grime, and salt spray. It is designed to withstand exposure to moisture, harsh weather, and even coastal environments, ensuring long-term durability. For even more protection, a light periodic lubrication of the moving parts is recommended.

Q:How does the spring-loaded mechanism work?

The internal high-tension spring keeps the pin in the locked position under constant, controlled tension. To release, simply press the pin against the spring force, then release it to lock back into place. This simple, reliable design prevents accidental disengagement from vibration or impact, ensuring the latch stays secure at all times.

Q:What size door frames is this latch compatible with?

The adjustable slotted mounting plate allows it to fit most standard door frames, trailer gates, and truck bed configurations. The elongated holes provide flexibility for alignment, making it suitable for a wide range of common sizes and applications. If you have a non-standard setup, it's ideal for custom builds as well.

Q:Can this latch be used outdoors?

Yes. Thanks to its corrosion-resistant zinc plating and robust steel construction, it is perfectly suited for outdoor use, including on trailers, RVs, marine equipment, and farm vehicles exposed to the elements. It performs reliably in rain, snow, and high-humidity conditions.