SHGB428M | Stronghand Grounding Utility Clamp – Spring Loaded GROUNDING CLAMP Clamping + Grounding at the same time. Consistently rated at 300 AMPS Solid insulated copper U-Channel rotates for easy access and can attach to round / odd-shaped parts. Amperage / Cable Size: 300A / — Throat Depth: 64mm Max. Capacity: 75mm Tapped Hole: M6 Clamping Pressure: 100kg OAL: 180mm Weight: 0.4kg