Stop Water Damage and Short Circuits in Your Electrical Projects
You know the feeling. You spend hours setting up outdoor lights, installing a new junction box, or wiring a marine device. Everything looks perfect. But a week later, the system fails. The lights flicker, the equipment stops working, or worse, a short circuit happens. Why? Because water found its way into the cable connection.Moisture is the number one enemy of electrical systems. Rain, humidity, and even dust can creep into tiny gaps. Once water gets inside the connector, it causes corrosion, rust, and dangerous shorts. You lose money on repairs and time on rework. You need a solution that seals tight and stays tight, even in bad weather.That is where our PG7, PG9, and PG13.5 waterproof cable glands come in. These are not just plastic nuts. They are engineered seals designed to lock out water, dust, and dirt. They grip the cable tight to prevent pulling and twisting. Best of all, we sell them individually. You do not need to buy a huge kit if you only need a few. You get exactly what you need for your specific job.
What Makes These Nylon Cable Glands Special?
These connectors are built for real-world use. They are not delicate parts that break easily. We use high-quality Nylon PA66 material. This is a tough plastic. It resists heat, chemicals, and UV rays. If you leave them in the sun for years, they do not crack or become brittle.The secret is the sealing design. Inside the gland, there is a rubber washer or sealing insert. When you tighten the nut, it crushes down on the cable jacket. It creates a perfect barrier. This is why they have an IP68 rating. IP68 means total protection. No dust gets in. No water gets in, even if you submerge the cable.You also get strain relief. The spiral design and the claw-like grip hold the cable firmly. If someone pulls the wire by accident, the force goes to the gland, not the electrical connection inside the box. This prevents wires from breaking loose.
Technical Specifications and Size Guide
We provide the most common sizes for general wiring needs. Each size fits a specific range of cable diameters. Please check your cable size before ordering to ensure a perfect fit. Here are the details for the PG types we sell:
PG7 Cable Gland Details
- Cable Range: 3.0mm to 6.5mm (approx. 0.12″ to 0.26″)
- Thread Outer Diameter: 12.5mm
- Thread Length: Standard or Long (15mm options available)
- Spanner Size: 19mm or 22mm (wrench size needed for installation)
- Material: Nylon PA66 Body with EPDM or Silicone Rubber Seal
- Protection Level: IP68 (Submersible up to 1 bar pressure)
- Color: Black or Light Gray (RAL7035)
- Working Temp: -40°C to +100°C (Static), -20°C to +80°C (Dynamic)
PG9 Cable Gland Details
- Cable Range: 4.0mm to 8.0mm (approx. 0.16″ to 0.31″)
- Thread Outer Diameter: 15.2mm
- Thread Length: Standard or Long (15mm options available)
- Spanner Size: 22mm
- Material: Nylon PA66 Body with EPDM or Silicone Rubber Seal
- Protection Level: IP68
- Color: Black
- Working Temp: -40°C to +100°C (Static)
PG13.5 Cable Gland Details
- Cable Range: 6.0mm to 12.0mm (approx. 0.24″ to 0.47″)
- Thread Outer Diameter: 20.4mm
- Thread Length: Standard or Long (15mm options available)
- Spanner Size: 27mm
- Material: Nylon PA66 Body with EPDM or Silicone Rubber Seal
- Protection Level: IP68
- Color: Black
- Working Temp: -40°C to +100°C (Static)
Note on Thread Length: We offer standard threads and extended threads (15mm). The longer threads are very useful if you are mounting the gland on a thick panel or a box with a deep wall. They give you more turns to get a tight seal.
Where to Use These Waterproof Connectors
You can use these glands almost anywhere you need to run a cable through a hole. They are versatile and tough. Here are the most common places our customers use them:
Outdoor Lighting and Garden Projects
If you are hanging string lights, installing garden spotlights, or setting up security cameras, you need these. Rain and sprinklers will hit the wires. A PG9 or PG13.5 gland seals the entry point to the junction box. It keeps the water out of your expensive LED driver or controller.
Marine and Boat Wiring
Salt water destroys electronics fast. On a boat, you have constant exposure to spray and humidity. These nylon glands resist salt water corrosion. They are perfect for wiring navigation lights, bilge pumps, and marine radios. The IP68 rating means they can handle temporary submersion if the boat rocks too much.
Industrial Control Boxes
In a factory or workshop, dust and metal shavings can clog up electrical contacts. Using a PG7 gland on a control panel keeps the inside clean. It also stops vibration from loosening the cable. The strain relief grip ensures the wire stays put even when heavy machinery moves.
Solar and Renewable Energy
Solar panels live outside 24/7. The wiring from the panel to the inverter needs maximum protection. Our cable glands handle UV exposure well. They do not degrade in the sun, making them a reliable choice for solar installation mounting boxes.
How to Install for Maximum Waterproofing
Installation is simple, but you must do it right to get the IP68 rating. Do not just hand-tighten it. Follow these steps:
- Strip the Cable: Cut the cable jacket carefully. Do not cut the copper wires inside. Measure the stripping length. It should match the gland length.
- Insert the Cable: Push the cable through the gland nut and the sealing ring. Make sure the end of the jacket touches the inner stop.
- Tighten the Nut: Use a wrench (spanner) on the hexagonal body. Turn the lock nut onto the box thread. Tighten it firmly.
- Compress the Seal: As you tighten, the rubber seal inside will squeeze the cable. You should see a small “bead” of rubber squeeze out between the nut and the cable. This is good! It means the seal is active.
- Check the Torque: Do not over-tighten until the plastic cracks. Tighten until it feels solid and the seal compresses. If you have a torque wrench, refer to the datasheet (usually around 15-20 Nm for these sizes, but hand-tight plus a quarter turn is often enough for plastic glands).
Pro Tip: If your cable diameter is on the smaller side of the range, you can add a layer of electrical tape around the cable before inserting it. This helps the seal grip better.
Why Buy From Us?
We are a cable production factory, not just a reseller. We make these glands ourselves. This means we control the quality. We use virgin Nylon PA66, not recycled scrap plastic. Our rubber seals are made of EPDM or Silicone, not cheap PVC that gets hard in the cold.Because we are the factory, we can sell them individually. You do not need to buy a pack of 50 if you only need 5. This saves you money and storage space. We also offer bulk pricing for contractors. If you need 500 pieces for a big project, contact us for a quote.Our stock includes standard black and gray colors. We can also do custom colors for large orders. We ship worldwide. Whether you are in the USA, UK, Australia, or Europe, we can get these connectors to you fast.
Frequently Asked Questions
Q: Are these glands UV resistant?A: Yes. The Nylon PA66 material has UV stabilizers. They will not crack or fade quickly in the sun.Q: Can I use these with armored cable?A: No. These are for standard PVC or rubber jacketed cables. For armored cable, you need special glands designed to grip the metal armor.Q: What is the difference between IP67 and IP68?A: IP67 protects against temporary immersion (up to 1 meter for 30 mins). IP68 protects against continuous submersion under pressure (usually 1 meter or more, depending on the manufacturer). Our glands are IP68, which is the higher standard.Q: Do you have metal (brass) versions?A: Yes, we produce brass glands too. But nylon is better for corrosion resistance in wet environments and is cheaper. Brass is better for high-heat or high-mechanical strength situations.Q: Can I reuse these glands?A: It is not recommended. When you tighten them, the rubber seal compresses permanently. If you loosen and re-tighten, the seal might not be as tight the second time. For critical waterproofing, use a new one.
Ready to Secure Your Cables? Get a Quote Today!
Do not let water ruin your next project. Use the right parts from the start. Our PG7, PG9, and PG13.5 waterproof nylon cable glands are in stock and ready to ship. Whether you are a DIY enthusiast fixing your garden lights or a procurement manager for a large electrical contractor, we have the right solution for you.We offer the best quality at factory-direct prices. No middlemen markups. Just pure value.Click the “Request Quote” button now. Tell us which sizes and quantities you need. If you need a special color or a specific packaging style, let us know. We can customize the order for you. Protect your wires today!