PIDG terminals are designed for uniform reliability in the harshest circuit environments, especially where high vibration and movement become factors. These terminals consist of of a nylon or PVC insulated body, plus a metal sleeve which clamps to the wire adding support. The design of the wire barrel resists vibration while allowing the wire to bend in any direction without damaging the insulation or conductor.
 

This spade terminal (EDMO# 32059) fits #8 studs, has blue insulation, and used for 14 AWG wire.