Gardner Bender 19-2H2 Hex-Lok Multi-Range Wire Connectors, 3-Pack

Easy on/off without tools. Knurled wings for a surer grip and offset from centerline for greater twisting leverage. Easily removed for repeat usage on same size combination or larger. Expandable square-wire plated spring adjusts to shape and size of splice for a vibration-resistant connection. Thermoplastic shell. Flame-retardant, non-porous, non-corrosive shell resists surface cracking and chemical action. Temp rating: 221 deg F. Superior flash-over protection. High-dielectric shell features deep skirt design to prevent exposure of bare wire. Buttress threads screw into wire insulation. Copper to copper connections only. #84 Yellow: minimum 1 #8 with 3 #22 - maximum 3 #12 wire combinations. #86 Red: minimum 2 #14 maximum 5 #12 wire combinations. #88 Gray: minimum 1 #12 with 2 #14 maximum 4 #10 SOL wire combinations. #89 Blue: minimum 1 #10 with 1 #12 - 2 #6 wire combinations.