These butt splices are insulated to help prevent accidental short-circuits with nearby wires and protect the connection from other environmental hazards. Use butt splices to join two wires end-to-end, allowing you to extend, repair, or replace electrical connections.

Nylon insulation is more durable and chemically-resistant than vinyl insulation.

Double-crimp splices have a brass sleeve on the barrel that can be crimped to wire insulation to provide strain relief for the connection.

These butt splices aren't insulated, so you can crimp the barrel more precisely in applications where the connection will not be inadvertently touched. Use butt splices to join two wires end-to-end, allowing you to extend, repair, or replace electrical connections.

The adhesive insulation on these butt splices shrinks to seal out water and other environmental hazards when heat is applied. Use butt splices to join two wires end-to-end, allowing you to extend, repair, or replace electrical connections.