Arlington Industries, Inc.
They install from inside or outside a metal panel or metal enclosure, through one of the existing 1/2" knockouts. There’s no need to modify the box or enclosure to accommodate the connector! GC50 and GC75 provide excellent strain relief for grounding conductors. Listed for use with stranded and solid copper and aluminum wire.
EPCO
EPCO solid and stranded wire, single and dual-gang Grounding PigTails are available in 6.5”, 8”, 10”, and 12” lengths and include a grounding screw and a machine-made, insulated crimped ring, or flanged spade fork terminal.