The Easy-Twist SB1408S 50-Count Pack Of Steel Crimp Sleeve Wire Connectors Are Designed For Use On Wires In The 14-8 Awg Size Range. The Simple Brass-Plated Sleeve Design Forms Low-Resistance Connections In A Tight Space and Installs Using A Specialized Crimp Tool or Adjustable Pliers. Use Crimp Sleeves to Permanently Connect Wires In Grounding, Uninsulated or Small Motor Applications Where Vibration Resistance Is A Concern.