Welding Ground Clamp, Solid Brass Heavy Duty Screw-Lock C-Style Earth Clamp, 400 by | Jul 4, 2026SOLID BRASS BODY – STRONG CONDUCTIVITY. Built from solid brass for efficient current transfer and dependable grounding. HEAVY DUTY – BUILT FOR 300A–500A. Net weight: 1.65 lbs – solid brass, not hollow.