A pack of 20 insulated ring crimp terminals, you choose colour (all the same colour per pack, no mixed packs).
Also called cold pressed connectors, terminals, ferrules, and various other names depending on where you were raised.
Not much more to say about this, it is what it is, insert wire, use a crimping pliers to, err, crimp it, and there you go.
Hole/bolt size: 4mm
Maximum current: 10A (* China says 19A, but I suggest 10A max because, China)
Wire Size: 0.5-1.5mm²/22-16awg cable
Get your crimp on.
All of our products are shipped from Christchurch, New Zealand using CourierPost for NZ, and Airmail for international.