Direct from Manufacturer
Premium Screw Waterproof Connectors
- IP68 waterproof protection with dual seal design for harsh environments
- Custom branding solutions including logo printing and personalized packaging
- Fast delivery in 5-7 days with 600,000 monthly production capacity
- Factory direct pricing with flexible MOQ and no middleman markup
- TÜV, UL, SAA,CE certified quality with virtually zero customer complaints
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.
Factory Direct Pricing
Customization
Quality Control
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:
- IP68-rated protection against dust and water (submersible up to 4 meters)
- Screw-lock mechanism for secure, vibration-resistant connections
- Double-injection sealing technologywith inner and outer rubber rings
- Pre-insulated designeliminating the need for additional waterproofing compounds
Why Choose Screw Waterproof Connector?
IP68 Protection
High Current Capacity
Flame Retardant
Dual Seal Design
Durable Materials
Security & Reliability
Screw Waterproof Connector Applications
Solar Energy Systems
Reliable connections for solar panels, inverters, and monitoring equipment in outdoor installations.
Outdoor LED Lighting
Marine & Maritime
Industrial Automation
Telecommunications
Agricultural Systems
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
450V
IP68
0.5mm²
450V
5-9mm, 9-12mm
IP68
0.5mm²
450V
5-9mm, 9-12mm,
10-14mm
IP68
0.5mm²
450V
5-9mm, 9-12mm,
10-14mm
IP68
0.5mm²
450V
5-9mm, 9-12mm
IP68
0.5mm²
450V
5-9mm, 9-12mm,
10-14mm
IP68
0.5mm²
450V
24A
5-9mm, 9-12mm
IP68
0.5mm²
450V
5-9mm, 9-12mm,
10-14mm
IP68
0.5mm²
4.0mm²
450V
24A
5-9mm, 9-12mm,
10-14mm
IP68
0.5mm²
2.5mm²
450V
24A
5-9mm, 9-12mm,
10-14mm
IP68
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
Step-by-Step Installation Guide
Step 1: Prepare the Connector
Step 2: Access the Terminal
Step 3: Connect the Wires
Step 4: Complete the Installation
Installation Tips
- Strip wires to the appropriate length before insertion
- Ensure all screws are tightened to manufacturer specifications
- Test connections before final installation
- Double-check waterproof seal integrity
Product Testing-Where Quality Happens

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
Waterproof Connector Pull Test – Ensuring Strong, Reliable Connections!
IP68 Waterproof Connector Test: 4M Depth, 2 Hours Waterproof Simulation
2500V Withstand Voltage Test: No Breakdown, Maximum Protection
Glow Wire Test: Ensuring Safety and Durability of Our Connectors
Salt Spray Test: Corrosion Resistance of Our Connectors in Harsh Environments
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
Flexible MOQ.
Qualified Certification
Fast Delivery
Free Sample
Global Support
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.
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