TERMINAL BLUE BUTT PK100, PACK OF 100 /

Part No. 44-919.B.PK100 (oro2u.com)
Crimp Butt Connectors Pack/100 (Blue).
Crimp Connectors. Simply bare off 5mm of wire, put the connector to be fitted on over the bared wire, and crimp with electrical or standard pliers.

WIRE ENTRY = 1.04mm2 - 2.63mm2