McMaster 6926K89 Tin-Plated Copper Compression Lug, 2 Holes, Single Crimp, for 2/0 AWG and 3/8" Screw

These lugs connect wire as large as 500 MCM in industrial feeder circuits, high-power service entrances, and other large systems. Squeeze the barrel tightly and evenly onto the wire with a compression tool for a permanent connection that stands up to heavy vibration, sudden shocks, and daily wear and tear. Compression lugs are a step up from set screw lugs when you need a physically strong connection, though set screw lugs attach to even larger wire.

Single Crimp — Provides a secure enough grip for most jobs.

Noninsulated — The basic, economical option when short circuits from nearby wiring aren't a concern.