How to join wires

How to make electrical connections.


Connecting two wires together may seem a very simple thing, but there are various ways of doing it, suited to different circumstances.


  • Make sure your connections are suitably insulated so as to avoid short circuits and possible electric shock or fire hazards.
  • A minimum physical strength may be required in addition to a good electrical connection, so as to avoid it pulling apart, possibly exposing dangerous bare wire ends.

Solder joints

Screw terminals

Crimp connections

Bullet connectors

Closed end and butt connectors

Chris Moller's technique

Scotch Lock connectors