10Pcs 4mm Banana Jack Female Panel Mount Banana Socket Binding Post Adapter for 4mm Banana Plug Connectors

I used these on a project that with kelvin probes (https://www.amazon.com/dp/B0CH39H8JR?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1). The probes insert into these jacks very smoothly and are very solid while plugged in. The mounting nut is deep and grabs a lot of threads. The only thing I don't like is the two-notch style of nut. I find a hex style nut easier to tighten down.

Sturdy. Built well. Using these to build a capacitor discharge tool. Excellent.

Items where as good as described. Good value for money and delivery was a bit faster than expected.

Used for a break out box I made for test leads, rather than having 3 different clamps on each terminal of the battery.Worked Perfect for my needs.

I used these in a breakout box and the look and feel of these jacks make the box look very professional!

Accept 4mm banana plugs easily.

Difficult to solder if you choose not to use the clamp on connection

These things are a charm. Used on a work project to make a small multimeter box and it was super easy to use. Tabs can be used with soldering or a quick connect female spade connector. Nut threads are really fine so maybe add a little glue or loctite to help the tension. Use a 1/2" drill bit for your ports.