**SEE MY PRFVIOUS AD FOR A PHOTO OF THESE CLAMPS**
NEW. Heavy duty 'robust', heavier than the typical imports sold in hardware stores. Brass ground rod clamps, aka Acorn clamps. U.S. manufactured by EMC (Electric Motion Company, Inc. in CT). For 5/8" and 1/2" OD ground rods. The photo shows some of the clamps with a 5/8" OD mast. $3./ea. Plus postage. PayPal Only.