You need to order the mating crimp terminals separately. TE's Universal MATE-N-LOK terminal family (e.g., 60619-1 for 18-22 AWG, 60620-1 for 14-20 AWG) are the standard fit; confirm wire gauge and current rating against the terminal datasheet.
Latch Lock Retention for In-Line Harnesses
The latch lock fastening provides positive retention without tools — you hear and feel the click when the plug fully seats into the mating receptacle. This is the same locking system used across the Universal MATE-N-LOK line, so the 640582-1 mates with any standard Universal MATE-N-LOK receptacle housing of matching position count (8 circuits) and row configuration. The free-hanging mount means the housing floats in the harness, absorbing cable strain before it reaches the contacts.