BU-27C Mueller General Purpose Copper Clip - 40 Amp
General Purpose Clip Model # BU-27/BU-27C Crimp or screw connection; jaw opens 0.625" (16 mm) max Material: zinc-plated steel (BU-27) or solid copper (BU-27C); Spring: steel Length: 2.44" (61.9mm) Federal Spec: CID AA59466-008 (BU-27C) Rating: 20 Amps (BU-27) or 40 Amps (BU-27C)