3M™ Scotchlok™ Color-Coded Locking Fork is a lug connection terminal that has a spring-like tongue to securely lock around the stud. The terminal has a vinyl-insulated, brazed-seam barrel and withstands temperatures of -40 to 221 degrees F (-40 to 105 degrees C). Electrolytic copper construction offers good conductivity and a tin-plated finish resists corrosion.