We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Brass ground clamp with ball-point screw, 300A capacity

Value Brand

Value Brand Brass Ground Clamp 300A 1 in

SKU CH-TN1P-01320

Brass ground clamp rated 300 A with 1 in jaw opening for flat surfaces and pipe

  • Product typeBuilding Wire
  • 300 A capacity handles heavy grounding jobs
  • 1 in jaw opening fits thick cable up to 1 AWG
  • Brass body and spring resist corrosion while gripping tight
  • Non-conductive design adds safety on live circuits
  • Compact 1.2 in width fits tight workspaces

Brass Ground Clamp 300 A

This brass ground clamp is rated for 300 A and fits cable gauges from 3 AWG to 1 AWG. It is built for electrical professionals and industrial maintenance crews who need a reliable grounding point on flat surfaces, plates or round pipe.

Capacity and headroom: 300 A with 1 in jaw

The clamp accepts a maximum cable gauge of 1 AWG and a minimum of 3 AWG, with a jaw opening of 1 in and a throat depth of 3 3/8 in. It handles heavy-duty welding or grounding tasks within that range, but larger cables or wider workpieces will exceed its mechanical limits.

Upgrade from smaller clamps or worn springs

It replaces lower-amperage clamps or units with weakened springs that can no longer grip tight. The high-tensile spring and brass body give a step up in holding power and corrosion resistance, making the change worthwhile when the job calls for 300 A capacity and a secure fit on flat or round surfaces.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 60% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand nameZORO SELECT
Product typeBuilding Wire

Questions about this item

Will the 300 A brass ground clamp fit alongside the 1 AWG welding cable I already use?

Yes, the clamp accepts cable from 3 AWG up to 1 AWG, so your existing 1 AWG cable fits within the specified range.

How can I verify the ball-point screw is making proper contact after I tighten it?

After tightening the ball-point screw, inspect that the cable is fully seated and the high-tensile spring holds the jaws firmly against the workpiece; a secure, immobile connection indicates correct contact.

Does the package include any cable or lugs, or must I supply them separately?

Only the brass ground clamp is included; compatible welding cable and any required lugs must be purchased separately.

More in Wire, Cable & Wiring Supplies

Similar items