Gardner Bender Hex-Lok ULTRA, Hex Head Multi-Range Winged Twist-On Wire Connectors with Over-Torque Protection, Gray, #14-#6 AWG; 3/Card

These multi-range hex-head connectors cover 95 percent of everyday applications making them the simple choice for all of your wire connection needs. Don't worry about using a hex tool to install - you can't over-torque this connector because it's patented hex-head design strips out at UL torque saving the wires and your fingers. Inside the connector a zinc-plated square wire spring ensures a secure connection that resists corrosion. The thermoplastic shell is designed for long-lasting strength and resists chemicals while the deep skirt supports smooth wire entry and coverage of stripped wires. Use for: Large appliances, Timers, Indoor lighting, Switches, Ballasts, Junction Box, Air conditioners

Hex head design allows for automatic or manual installation without stress distortion
Patented design can't be over-torqued, strips out at UL torque
5/16" or 7/16" hex driver installation option
Streamlined design for compact installations
Square wire spring grabs and holds wires for secure connections
Long skirt covers stripped wires
Rated at 600V max in building wire and at 1000V max in lighting, fixtures/luminaries and signs
Copper to copper connections only