Midwest Fastener
Diameter: #6 to #4Length: 59/64"Material: Metal/PlasticHead Style: SpadeNominal Size: #4-6 Screw SizeStyle: InsulatedType: Spade TerminalWire Size: 22-18 GaugeAn electrical connector that makes electrical contact when a bolt or screw is passed through the spade end of it. This has an advantage over the ring terminal, because it can be removed without loosening the bolt or screw.
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Eaton Cooper Wiring Grounding Adapter 419GY
Conduit Fitting, Bushing, Thermoplastic, 2-In.
Halex 1-1/2 In. Rigid LB Access Fitting
Plastic Insulating Conduit Bushing, 1-1/2-In.