Originally Posted By: sotto
BTW, the nail I used for the original spike was a very long galvanized nail used for fastening rain gutters on the eaves of a house. That's the longest "nail" I have ever run across and hopefully can locate a couple more of those.


I used a nail "spike" that was about 10in x 3/8in diameter. I see these are available at Lowes. I didn't use the entire length, just drilled a hole and pounded it in, then cut off the excess.