Double Bladed. Self-stripping, Auto Tap Connectors, Flame Retardant. These 3M ScotchLok Auto-Tap heavy-duty self-stripping connector are designed for 22-18 and 16-14 gauge wire. Ideal for equipment where tap, in-line and pigtail splices are required. UL listed for 300 volt tap splice. Available in Red and Brown - Choose between 100 and 1000 connectors per box.