Spade plugs with 4.2mm cable entry and dual screw cable retention. cable entry fits everything up to 4mm conductors.
for two cores of Canare 4S11 or similar sized cable, discard the outer shell and use heatshrink over the body.
SOLD IN PAIRS, one black one red
For cables over 4mm conductor OD, screws may not screw in far enough for shell to be installed.
I recommend only barely twisting strands together to allow the screw to crush in more, alternatively the screws can be removed and solder can be used.