CANARE MINIATURE JACK PLUGS
The 3.5mm jack plug, as interpreted by a precision connector manufacturer. They are available in 2-pole and 3-pole versions, and have robust nickel-plated brass shells with spring-type strain relief. Wrap-over style cable clamp. Maximum cable diameter 6.0mm. These are as good as 3.5mm plugs go!
Full Description (PDF)