



NPT Tapered Nylon Cable Glands for North American Market
Heavy-duty NPT nylon connectors providing a high-torque, IP68-rated seal for US-standard electrical hubs and conduits.
- Self-Sealing Tapered Thread: Creates a secure, leak-proof mechanical bond in threaded NPT hubs without extra accessories.
- Rugged IP68 Protection: Certified for outdoor use, protecting internal wiring from pressurized water jets and humidity.
- UV-Stabilized PA66 Material: Prevents brittleness and cracking in harsh rooftop HVAC or solar power installations.
- High Torque Resistance: Robust body construction allows for aggressive tightening in rigid conduit systems.
NPT Series Cable Gland Description
Targeting the North American infrastructure, our NPT Nylon Glands are the premium choice for contractors and industrial suppliers. These American standard cord grips utilize a tapered thread design to ensure a permanent IP68 watertight interface for power distribution boxes.
As a professional manufacturer, we provide bulk quantities to distributors supporting large-scale solar or telecommunications projects. Our NPT cable entries effectively solve the need for high-strength strain relief, making them the most reliable wholesale option for OEM manufacturers across the USA and Canada.
NPT Thread Cable Joiner Performance Sheet

| Model | Cable Range(mm) | Nut Height | Outer Diameter Of Nut | Thread Diameter (C1) | Thread Length (C2) | Wrench Size | Nut Diagonal |
| NPT-1/4 | 4-8 | 15.8mm | 18.8mm | 13.7mm | 15mm | 20mm | 22mm |
| NPT-3/8 | 5-10 | 17.3mm | 21.7mm | 17.1mm | 15mm | 23mm | 26mm |
| NPT-1/2 | 6-12 | 18.6mm | 23.5mm | 21.3mm | 8mm | 27mm | 30mm |
| NPT-3/4 | 13-18 | 21.7mm | 31.6mm | 26.6mm | 15mm | 33mm | 36mm |
| NPT-1 | 18-25 | 25.6mm | 41.6mm | 33.2mm | 15mm | 42mm | 46mm |
| NPT-1-1/4 | 25-33 | 30mm | 52.8mm | 42mm | 15mm | 49mm | 55mm |
| NPT-1-1/2 | 32-38 | 30.5mm | 61.1mm | 48mm | 15mm | 56mm | 61mm |
| NPT-2 | 37-44 | 30.5mm | 64.8mm | 60mm | 15mm | 70mm | 75mm |
Request Quote for US Standard NPT Glands
Source high-torque NPT cord grips directly from the manufacturer. Inquire today to receive professional support and competitive wholesale rates for your North American industrial wiring infrastructure.
FAQs
NPT Watertight Gland Features
The defining feature of our NPT series is the tapered thread design, which creates a high-torque mechanical seal upon installation. This “wedge” effect ensures that the nylon connector stays securely fastened in threaded hubs, providing superior vibration resistance. As a professional manufacturer, we ensure every NPT cord grip features a reinforced hex nut for easy tightening with standard industrial wrenches, ensuring a secure IP68 barrier.
NPT Thread Benefits for North America
Specifically tailored for the USA and Canadian markets, these NPT nylon connectors simplify compliance for projects requiring ANSI/ASME standards. Their robust construction handles the physical rigors of rigid conduit transitions and outdoor HVAC systems. By choosing our factory-direct NPT glands, bulk buyers receive a UV-resistant solution that prevents cable fatigue and moisture ingress in high-exposure North American industrial zones.
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