Screw on wire connector
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Screw-On Wire Connectors | UL 94V-2 Flame-Retardant Wire Nuts
(Color-Coded, No Pre-Twisting Required – Secure Connections in Seconds)
Product Highlights
✅ Industrial-Grade Safety – Thermoplastic nylon shell with UL 94V-2 flame resistance, ideal for electrical applications.
✅ Zinc-Plated Spring Core – Square wire spring ensures vibration-proof wire retention without loosening.
✅ Color-Coded Sizing – 5 standard colors (Gray/Blue/Orange/Yellow/Red) for instant wire gauge identification.
✅ Tool-Free Installation – Simply insert stripped wires and screw tight – no pre-twisting or crimping needed!
✅ Wide Compatibility – Accommodates 0.25mm² to 6mm² wires (see full size chart below).
Technical Specifications
| Feature | Details |
|---|---|
| Material | Nylon 66 Shell + Zinc-Plated Steel Spring |
| Certifications | UL 94V-2 Flame Retardant, ROHS Compliant |
| Temperature Range | -40°C to +105°C (Heat/Cold Resistant) |
| Packaging | 100pcs/bag – Bulk discounts for contractors & distributors. |
| ITEM NO. | HEIGHT | WIDTH | INNER DIA | SUITABLE WIRES | COLORS |
| MM | MM | MM | |||
| MZ-P71 | 15 | 8.5 | 6.5 |
min 0.75x1+0.5x1 max 1.5x2 |
GRAY |
| MZ-P72 | 18 | 10 | 7.5 |
min 0.75x3 max 1.5x3 |
BLUE |
| MZ-P73 | 20 | 12.5 | 9.5 |
min0.75x3 max1.5x3+1x1 |
ORANGE |
| MZ-P74 | 23.5 | 13.5 | 11 | min0.25x1+0.75x1 max2.5x4+0.75x1 | YELLOW |
| MZ-P75 | 24.5 | 16 | 13 | min0.25x2 max6x2+4x2 | RED |
Key Advantages Over Traditional Wire Nuts
🔸 Faster Installation – No pre-twisting or tools required; screw-on design cuts labor time by 50%.
🔸 Superior Grip – Zinc-plated spring bites into strands for anti-vibration security.
🔸 Reusable – Unscrew to modify connections without damaging wires (unlike crimp connectors).
🔸 All-Environment Use – Resists moisture, heat, and chemicals in industrial/outdoor settings.
Common Applications
🏭 Industrial – Control panels, motor wiring, and machinery circuits.
🏠 Residential – Light fixtures, outlet junctions, and ceiling fan installations.
🔌 Low-Voltage Systems – Security alarms, HVAC controls, and automotive wiring.
⚡ Renewable Energy – Solar panel arrays and wind turbine connections.
How to Use Screw-On Wire Connectors?
1️⃣ Strip Wires – Remove 10-12mm insulation from each conductor.
2️⃣ Insert & Align – Push wires fully into the connector until flush with the base.
3️⃣ Screw Tight – Rotate clockwise until firm resistance is felt (≈3 turns).
FAQ
❓ Can these replace standard twist-on wire nuts?
→ Yes! They provide stronger grip and are reusable – ideal for maintenance-heavy setups.
❓ Do you offer custom colors for OEM projects?
→ Absolutely – Contact our team for color/size customization.
❓ What’s the maximum voltage rating?
→ Rated for 600V AC – suitable for most low-voltage and household applications.
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