Harbor Freight Tools


400 Amp Welding Ground Clamp

Get solid ground contact with this copper alloy welding ground clamp

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The 400 amp welding ground clamp is constructed from copper alloy for excellent conductivity. The ground clamp has a large contact area for positive grounding. The high strength spring ensures solid ground contact. Large hex screws for safe cable connections.

  • Heavy duty copper alloy construction
  • Large contact area for positive grounding
  • Large hex screws for safe cable connections
  • High strength spring for solid ground contact

Amperage (amps)
3/0 gauge cables
Jaw opening
1-1/5 in.
Copper alloy
Product Length
8-1/4 in.
Shipping Weight
1.38 lb.
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.