The 0395332008 is an 8-position, single-level plug from the Molex Eurostyle ESE 39533 series, with a 5.08 mm pitch and female socket contacts.
Termination is a screw rising-cage clamp — you insert the stripped wire (5 mm strip length) and tighten the screw to 0.56 Nm (5.0 Lb-In). The cage rises to clamp the conductor against the contact, giving a gas-tight joint that doesn't cold-flow like a spring clamp. Accepts 12 to 26 AWG, so it covers everything from a heavy power feed to a small signal wire. The retention latches on the non-wire side lock the plug into the mating header — you'll hear a click when it seats. No secondary locking mechanism needed for most industrial vibration environments.