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Premium Screw Waterproof Connectors

Screw Waterproof Connector Supplier & Manufacturer

Founded in 2016, AGX®️ is one of the leading individually screw waterproof connector manufacturers in China, supplying popular screw waterproof connectores, including screw wiring connector, inline circular joint connectors, circular waterproof connector, IP68 waterproof connector, 2 pin waterproof connector, 3 pin waterproof connector, inline waterproof connector, etc. for high efficiency and low cost.

All our screw waterproof connectors are CE, RoHS, TUV, UL certificated, ensuring high performance and a long lifetime. We offer customized solutions, OEM, ODM service. Wholesalers, distributors, dealers, traders, agents are welcome to purchase in bulk with us.

Factory Direct Pricing

When you choose AGX as your addressable screw waterproof connector supplier, you benefit from our factory direct pricing with no middleman markup. By sourcing directly from the manufacturer, you get the most competitive rates and maximum cost savings for your project.

Customization

We provide OEM service for your screw waterproof connectors, including custom logo printing directly on the connector body, personalized packaging design, and professional labeling services.

Quality Control

Every connector undergoes comprehensive testing through our advanced laboratory equipment, including IP68 waterproof testing, 2500V withstand voltage testing, salt spray corrosion resistance, and flame retardancy tests. Our zero-defect production standards and multi-stage quality control process result in virtually no customer complaints, ensuring premium-grade reliability you can trust.

What is a Screw Waterproof Connector? What are they used for?

A screw waterproof connector is an electrical connection device designed with threaded coupling mechanisms and specialized sealing technology to prevent moisture ingress. These connectors feature:

Unlike traditional connectors that require potting compounds or gels, screw waterproof connectors achieve superior protection through precision-engineered gaskets and mechanical seals, making them ideal for outdoor, marine, and industrial applications.

Why Choose Screw Waterproof Connector?

IP68 Protection

Complete dust and waterproof protection for reliable performance in harsh environments.

High Current Capacity

Superior conductivity ensures stable high-speed signal and power transmission.

Flame Retardant

High temperature resistance and flame retardant materials provide enhanced safety.

Dual Seal Design

Inner and outer rubber ring system delivers excellent waterproof sealing performance.

Durable Materials

PA66 construction with anti-UV properties ensures long-lasting outdoor durability.

Security & Reliability

Robust design guarantees secure connections and consistent performance over time.

Screw Waterproof Connector Applications

AGX screw waterproof connectors serve diverse industries below:

Solar Energy Systems

Reliable connections for solar panels, inverters, and monitoring equipment in outdoor installations.

Outdoor LED Lighting

Weather-resistant connections for street lights, landscape lighting, and architectural illumination projects.

Marine & Maritime

Waterproof electrical connections for boats, docks, and offshore equipment exposed to saltwater environments.

Industrial Automation

Secure connections for sensors, control systems, and machinery in harsh manufacturing environments.

Telecommunications

Protected connections for outdoor communication equipment, base stations, and data transmission systems.

Agricultural Systems

Durable connections for irrigation controls, greenhouse automation, and farm monitoring equipment.

Wholesale Screw Waterproof Connectores

Product List

To be populated with specific product models and specifications

Model No.

Min. wire size

Max. wire size

Rated Voltage

Current

Cable Outer Diameter

IP Rating

Fire Rating

EW-M16-2/3P

0.5mm²

1.5mm²

450V

17.5A
3.5-7mm, 7-10mm

IP68

UL 94 V-0
EW-M20-3/4/5/6P

0.5mm²

2.5mm²

450V

24A

5-9mm, 9-12mm

IP68

UL 94 V-0
EW-M25-3/4/5P

0.5mm²

6.0mm²

450V

41A

5-9mm, 9-12mm, 

10-14mm

IP68

UL 94 V-0
EW-M25-3T/4T/5T

0.5mm²

6.0mm²

450V

41A

5-9mm, 9-12mm, 

10-14mm

IP68

UL 94 V-0
EW-M20T-2/3P

0.5mm²

2.5mm²

450V

24A

5-9mm, 9-12mm

IP68

UL 94 V-0
EW-M25T-2P/3P

0.5mm²

6.0mm²

450V

41A

5-9mm, 9-12mm, 

10-14mm

IP68

UL 94 V-0
EW-M20X-2P/3P

0.5mm²

2.5mm²

450V

24A

5-9mm, 9-12mm

IP68

UL 94 V-0
EW-M25X-2P/3P

0.5mm²

6.0mm²

450V

41A

5-9mm, 9-12mm, 

10-14mm

IP68

UL 94 V-0
EW-M25T-C-3P/5P

0.5mm²

4.0mm²

450V

24A

5-9mm, 9-12mm, 

10-14mm

IP68

UL 94 V-0
EW-M25Y-3/5P

0.5mm²

2.5mm²

450V

24A

5-9mm, 9-12mm, 

10-14mm

IP68

UL 94 V-0

Product Photo & Specification Download

EW-M16-2/3P

EW-M20-3/4/5/6P

EW-M25-3/4/5P

EW-M25-3T/4T/5T

EW-M20T-2/3P

EW-M25T-2P/3P

EW-M20X-2P/3P

EW-M25X-2P/3P

EW-M25T-C-3P/5P

EW-M25Y-3/5P

Product Video

Custom Screw Waterproof Connector

We provide comprehensive branding solutions including custom logo printing directly on connectors, personalized packaging, and professional labeling services. Our experienced R&D team ensures your brand identity is perfectly integrated into every product detail, delivering customized solutions that enhance your market presence.

How to use waterproof wire connectors

Installing waterproof wire connectors is straightforward with our simple 4-step process. Follow these instructions for secure, weatherproof connections every time.

Step-by-Step Installation Guide

Step 1: Prepare the Connector

Unscrew the waterproof connector housing and carefully insert your cable through the connector body. Ensure the cable passes completely through before proceeding to the next step.

Step 2: Access the Terminal

Unscrew the internal terminal section to expose the wire connection points. This allows you to properly position and secure your wires within the connector.

Step 3: Connect the Wires

Insert each wire into its designated terminal position and tighten the terminal screws securely. Ensure all wires are firmly seated and properly connected for optimal conductivity.

Step 4: Complete the Installation

Reassemble the connector by tightening the waterproof housing until fully sealed. Verify that all components are properly aligned and the connection is completely weatherproof.

Installation Tips

With proper installation, your waterproof wire connectors will provide reliable, long-lasting connections in any environment.

Product Testing-Where Quality Happens

All of our electrical connector are not mass-produced until they have gone through multiple rigorous testing steps in our laboratory equipment. This ensures high performance and stability and the product’s long life.

Automatic Insertion and Extraction Tester

Temperature rise current tester

Voltage Tester

Horizontal plug-in test

DC Resistance + Insulation Resistance Tester

IP68 Waterproof Tester

Scorch Wire Tester

Leakage Trace Tester

Horizontal Vertical Flame Tester

Constant temperature and humidity tester

Certification & Patents

Our commitment to quality and innovation is backed by international certifications, including TÜV, UL, SAA, and CE marks that verify our products meet the highest global standards. We’ve also secured multiple European intellectual property registrations, protecting our unique connector designs while demonstrating our dedication to advancing industry technology.

Why wholesale screwless waterproof connectors in bulk from us?

Certified Quality

We provide rigorously tested products that pass TÜV, UL, SAA, and CE certifications, ensuring IP68-rated protection you can trust in any environment.

Customization

Our 15-member R&D team creates custom "I", "T", or "X" type connectors with precise dimensions and specifications tailored to your unique project needs.

Flexible MOQ

Starting at just 10 pieces, our industry-leading minimum order quantities give you maximum flexibility to test without major inventory commitments.

Competitive Price

Choose us as your connector supplier and benefit from factory-direct wholesale pricing that eliminates middlemen and maximizes your savings.

Fast Delivery

Our team of 200+ experienced workers and automated production lines ensure your orders move quickly from manufacturing to your facility.

Innovative Design

Install in seconds without tools using our push-in, snap-fit connectors that save time while maintaining complete water and dust protection.

Why wholesale screw waterproof connectors in bulk from us?

Stable Lead Time

With a robust monthly production capacity of 600,000 pieces and a comprehensive manufacturing workflow spanning mold development, CNC machining, hardware stamping, automated assembly, and injection molding departments, we guarantee consistent delivery schedules. Our integrated production system ensures reliable lead times you can count on for your project planning.

Flexible MOQ.

We offer flexible minimum order quantities to meet the real needs of your project. Our exceptionally low MOQ requirements provide maximum flexibility for market testing and small-scale production, making it easy for businesses of all sizes to get started.

Qualified Certification

Our products meet stringent international standards with full TÜV, UL, SAA, and CE certifications, demonstrating compliance with global safety and performance requirements. These prestigious certifications validate our commitment to delivering world-class connector solutions that meet the highest industry standards across different markets.

Fast Delivery

With over 200 skilled workers and streamlined production processes, we deliver exceptionally fast turnaround times of just 5-7 days for standard orders. Sample shipments are processed within 24 hours, ensuring you can quickly evaluate our products and accelerate your project timeline.

Free Sample

We provide complimentary samples for testing and project compatibility evaluation, with same-day processing and shipment within 24 hours. This allows you to quickly assess our product quality and ensure perfect fit for your specific application before placing bulk orders.

Global Support

We provide comprehensive 12×7 global support covering every aspect of your project needs. From initial service consultation and customized product recommendations to logistics coordination assistance, our international team ensures seamless support throughout your entire project lifecycle.

FAQs

A: Our screw waterproof connectors are rated IP68, providing complete protection against dust ingress and continuous submersion in water up to 4 meters depth. They’re designed to perform reliably in the harshest outdoor environments.

A: Our connectors support various current ratings depending on the model, typically ranging from 10A to 30A. Voltage ratings go up to 2500V withstand capability. Please contact us for specific technical specifications based on your application requirements.
A: Yes, our connectors are specifically designed for solar energy systems and outdoor applications. They feature UV-resistant PA66 materials, excellent weatherproofing, and meet all relevant certifications for solar installations.
A: Installation is straightforward with our 4-step process: unscrew the connector, insert cable, connect wires to terminals, and tighten the waterproof housing. No special tools are required, and detailed instructions are provided with each connector.
A: Our screw waterproof connectors are certified to international standards including TÜV, UL, SAA, CE, RoHS, and REACH compliance. We also hold European intellectual property registrations for our connector designs.
A: We offer exceptionally flexible MOQ requirements to accommodate businesses of all sizes, from small-scale testing to large commercial projects. Contact us to discuss your specific quantity needs.
A: Yes, we provide comprehensive customization services including logo printing directly on connectors, personalized packaging, and custom labeling to enhance your brand presence.
A: We maintain fast delivery schedules with standard orders completed in 5-7 days. Sample orders are processed and shipped within 24 hours. Our 600,000 pieces monthly production capacity ensures stable lead times.
A: Absolutely. We offer comprehensive 12×7 global support including technical consultation, installation assistance, and can dispatch engineers for on-site support for larger projects at no additional cost.
A: Our connectors are designed for long-term durability with high-quality materials and rigorous testing. With proper installation, they provide reliable performance for many years in outdoor environments. We back this with virtually zero customer complaints track record.

Submit Your Waterproof Connector Request

Fill out this form with your detailed requirements and our technical support team will contact you shortly. We will assign a professional agent to follow up on your project and provide personalized assistance for your screw waterproof connector needs.

To get the fastest response, submit your inquiries using the form. If you encounter any issues with submission, you can also email us directly at cindy@agxconnector.com

Contact Us

Ask For A Quick Quote

We will contact you within 1 working day. Please pay attention to the email with the suffix”@agxconnector.com”

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Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

Unlock Your Waterproof Connector Specs Now

Please provide your email, and we'll instantly send your requested materials. Stay updated with our latest product innovations and technical advancements.

We guarantee 100% privacy – your information will never be shared.

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