GB's WingGard twist-on wire connectors offer unsurpassed quality and durability in a high-leverage, easy-on, wing-type design. These hardworking connectors offer a wide range of connection options essentially ensuring that one size can do the job of multiple standard connectors. The swept wings provide added turning torque and reduce the strain of multiple applications. The thermoplastic shell provides strength and resistance to chemicals while a long skirt prevents exposure of bare wire. The zinc-plated square wire-spring inside instantly adjusts to the shape and size of the splice upon insertion ensuring a long-lasting connection that resists corrosion and exceeds UL standards for dielectric strength and wire pullout force. Unsurpassed quality and durability in a high-leverage, easy-on wing-type designHigh-dielectric shell features deep skirt design to prevent exposure of bare wireWing-Gard finger-pleasing wings are knurled for a surer grip and offset from the centerline for greater twisting leverageEasily removed for repeat usage on same size combination or largerSecure connections mean positive continuityThe expandable square-wire plated spring instantly adjusts to the shape and size of the splice, then bites down to thread onto the wires without ratcheting and creates a strong, vibration-resistant connection-no pre-twisting tools are necessaryTough thermoplastic shell shields against environmental extremesFlame-retardant, non-porous, and non-corrosive shell resists surface cracking and chemical actionTemperature rating: 105 degrees C, 221 degrees FSuperior flash-over protection