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Screw on wire connectors
Material：UL Nylon 66, with spring inside.
Usage: peel wire coat, insert wires in, then tighten.
Screw on wire connectors
| Model | Height (mm) | Width (mm) | Internal diameter (mm) | Applicable wire diagram | Color |
| P71 | 15 | 8.5 | 6.5 | MIN#20xl+#22xl MAX#16×2 | Grey |
| P72 | 18 | 10 | 7.5 | MIN#20×3 MAX#16×3 | Blue |
| P73 | 20 | 11.5 | 9.5 | MIN#20×3 MAX#16×3+#18xl | Orange |
| P74 | 23.5 | 13.5 | 10.8 | MIN#14xl+#18xl MAX#14×4+#18xl | Yellow |
| P76 | 23.5 | 15.5 | 12.7 | MIN#14×2 MAX#10×2 + #12×2 | Red |
| P8 | 32 | 19 | 14 | Red yellow gray |
As an industry-leading, ISO-certified wire connectors factory, we are committed to delivering safe, reliable, and highly efficient electrical components to global distributors and OEMs. Whether you are sourcing wire connectors bulk supplies for construction projects or industrial manufacturing, our premium twist on electrical wire connectors ensure secure, long-lasting wire terminations that meet international safety standards.
Premium UL-Approved Nylon 66 Shell
Our connector shells are molded from high-grade, UL-certified Nylon 66, offering exceptional electrical insulation, and superior resistance to heat and impact. This ensures the housing won’t crack or degrade under extreme operating temperatures.
Built-In Expanding Square-Wire Spring
Each connector features a precision-engineered internal spring. To better understand how these internals function, read our Twist-On Wire Connectors: Complete Guide to Types, Sizes, and Uses.
Fast, Tool-Free Installation & Reusability
Installing our screw on wire connectors is incredibly simple: just peel the outer wire insulation coat, insert the conductors together, and tighten by hand. No pre-twisting or crimping tools are required, drastically cutting down on-site labor times. Plus, they can be easily unscrewed for convenient circuit revisions.
Comprehensive Standard Sizing & Industry-Standard Color Coding
We manufacture wire connectors ranging from 15 to 32 mm in height and 8.5 to 19 mm in width, clearly color-coded (Grey, Blue, Orange, Yellow, Red) to allow electricians to instantly identify and select the correct wire gauge combination on the job. To explore more industrial connection methods, see our Electrical Connectors: Types, Uses, and Complete Guide.
Our connectors are engineered with an outer shell made of premium UL Nylon 66 for maximum dielectric strength and thermal stability.
The installation is tool-free and straightforward: simply peel the wire coat to the recommended length, insert the wires into the connector without pre-twisting, and tighten by screwing the connector until snug.
You can refer to our standard parameter chart. Each model size features a distinct industry color code. For detailed specifications on wire gauges and capacities, read our Twist-On Wire Connectors: Complete Guide to Types, Sizes, and Uses.
Our Twist-On Wire Connectors are highly versatile, widely used in residential junction boxes, commercial lighting fixtures, HVAC systems, industrial control panels, and appliance manufacturing.
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