Wire Nuts 500PCS P13 Blue Winged Wire Connectors, 18-8 AWG Twist-On Wire Caps with Steel Spring Core, Flame-Retardant Connectors for Electricians Residential Wiring Repairs

18-8 AWG Heavy-Duty Wire NutsThese P13 blue wire caps fit 188 AWG solid and stranded copper wires, designed for 20A/30A/40A residential and commercial main circuits. Ideal for outlets, major appliances, AC units and panel branches, these wire nuts cover common thick-wire splicing needs for repairs and renovations. | Flame-Retardant Insulated Housing Made with durable flame-retardant PA66 nylon, these wire nuts resist continuous heat up to 105C (221F) for daily use. These wire caps form a tight insulating cover over spliced wires, preventing accidental contact and reducing short-circuit risks for home and light commercial wiring. | Secure Tapered Spring Grip Each of these wire caps features a high-tension galvanized carbon steel tapered spring for steady clamping force and low-resistance contact. The deep skirt design adds extra arc and short protection, keeping these wire nuts secure under long-term high-current loads. | Winged Anti-Slip Fast Install Dual textured wings on these wire nuts deliver ergonomic grip and extra torque leverage for quick hand tightening with no special tools. The ribbed surface prevents slipping in tight junction boxes, making these wire caps ideal for bulk wiring jobs and reducing installer fatigue. | 500 PCS Bulk Value Pack You will receive 500 P13 wire caps in a sealed storage bag, perfect for stocking up for multiple projects. These wire nuts work well for electricians, handymen and property maintenance teams, offering reliable performance at a cost-effective per-unit price.